diff --git a/Project/Manager/func/__pycache__/config.cpython-311.pyc b/Project/Manager/func/__pycache__/config.cpython-311.pyc
index d7c779a..f474287 100644
Binary files a/Project/Manager/func/__pycache__/config.cpython-311.pyc and b/Project/Manager/func/__pycache__/config.cpython-311.pyc differ
diff --git a/Project/Manager/func/__pycache__/index.cpython-311.pyc b/Project/Manager/func/__pycache__/index.cpython-311.pyc
index acbb2fb..8904051 100644
Binary files a/Project/Manager/func/__pycache__/index.cpython-311.pyc and b/Project/Manager/func/__pycache__/index.cpython-311.pyc differ
diff --git a/Project/Manager/func/__pycache__/login.cpython-311.pyc b/Project/Manager/func/__pycache__/login.cpython-311.pyc
index 0487ae4..a5542eb 100644
Binary files a/Project/Manager/func/__pycache__/login.cpython-311.pyc and b/Project/Manager/func/__pycache__/login.cpython-311.pyc differ
diff --git a/Project/Manager/func/config.py b/Project/Manager/func/config.py
index 852dc20..4ac7b14 100644
--- a/Project/Manager/func/config.py
+++ b/Project/Manager/func/config.py
@@ -1,9 +1,16 @@
-db = {
+db_service = {
     'host':'localhost', 
     'user':'managerAgent', 
     'password':'password123', 
     'database':'ServiceDatabase'
 }
 
+db_manager = {
+    'host':'localhost', 
+    'user':'managerAgent', 
+    'password':'password123', 
+    'database':'ManagerDatabase'
+}
+
 SECRET_KEY = 'ILOVEDATABASETECH'
 
diff --git a/Project/Manager/func/index.py b/Project/Manager/func/index.py
index 3a7fb44..12f7877 100644
--- a/Project/Manager/func/index.py
+++ b/Project/Manager/func/index.py
@@ -1,5 +1,5 @@
 from flask import render_template, request, g, redirect, url_for, session, jsonify
-from .config import db
+from .config import db_service
 import pymysql
 import csv
 import io
@@ -11,7 +11,7 @@ def index():
         flightID = request.args.get('flightID')
 
         if flightID:
-            conn = pymysql.connect(**db)
+            conn = pymysql.connect(**db_service)
             cursor = conn.cursor(pymysql.cursors.DictCursor)
             
             search_sql = """SELECT * FROM Flights WHERE ID = %s"""
@@ -41,7 +41,7 @@ def modify():
 
         status = request.form.get('status', '未知')
 
-        conn = pymysql.connect(**db)
+        conn = pymysql.connect(**db_service)
         cursor = conn.cursor(pymysql.cursors.DictCursor)
 
         try:
@@ -55,7 +55,8 @@ def modify():
             
             # 检查余座数是否为负值
             if new_first_class_seats < 0 or new_business_class_seats < 0 or new_economy_class_seats < 0:
-                return jsonify({'message': '座位变化后余座数不能为负值'}), 400
+                flash('座位变化后余座数不能为负值', 'error')
+                return redirect(url_for('index'))
             
             # 更新座位数和价格
             update_sql = """
@@ -67,22 +68,23 @@ def modify():
             cursor.execute(update_sql, (new_first_class_seats, new_business_class_seats, new_economy_class_seats,
                                         first_class_price, business_class_price, economy_class_price, status, flight_id))
             conn.commit()
+            flash('座位数、价格和状态更新成功', 'success')
         except Exception as e:
             print(e)
             conn.rollback()
-            return jsonify({'message': '数据库错误，请稍后再试'}), 500
+            flash(f'数据库错误：{e}', 'error')
         finally:
             cursor.close()
             conn.close()
         
-        return jsonify({'message': '座位数、价格和状态更新成功'}), 200
+        return redirect(url_for('index'))
     
 
 def delete_flight():
     if request.method == 'DELETE':
         flight_id = request.args.get('flightID')
         
-        conn = pymysql.connect(**db)
+        conn = pymysql.connect(**db_service)
         cursor = conn.cursor()
 
         try:
@@ -103,7 +105,7 @@ from flask import flash, redirect, url_for, jsonify, request
 import pymysql
 import csv
 import io
-from .config import db
+from .config import db_service
 
 def upload_csv():
     if request.method == 'POST':
@@ -112,7 +114,7 @@ def upload_csv():
             flash('没有文件上传', 'error')
             return redirect(url_for('index'))
         
-        conn = pymysql.connect(**db)
+        conn = pymysql.connect(**db_service)
         cursor = conn.cursor()
         
         try:
diff --git a/Project/Manager/func/login.py b/Project/Manager/func/login.py
index c5936a5..e3f6507 100644
--- a/Project/Manager/func/login.py
+++ b/Project/Manager/func/login.py
@@ -1,10 +1,10 @@
 from flask import request, jsonify, session, url_for, render_template, redirect
-from .config import db
+from .config import db_manager
 import pymysql
 
 
 def connect(managerID, encrypted_password):
-    conn = pymysql.connect(**db)
+    conn = pymysql.connect(**db_manager)
     cursor = conn.cursor(pymysql.cursors.DictCursor)
     args = (managerID, encrypted_password)
     verify_sql = "SELECT COUNT(*) FROM Managers WHERE ID = %s AND `Password` = %s;"
diff --git a/Project/Service/func/__pycache__/book.cpython-311.pyc b/Project/Service/func/__pycache__/book.cpython-311.pyc
index 076970f..e0746ab 100644
Binary files a/Project/Service/func/__pycache__/book.cpython-311.pyc and b/Project/Service/func/__pycache__/book.cpython-311.pyc differ
diff --git a/Project/Service/func/__pycache__/modify.cpython-311.pyc b/Project/Service/func/__pycache__/modify.cpython-311.pyc
index 5e22dc5..0e5ded8 100644
Binary files a/Project/Service/func/__pycache__/modify.cpython-311.pyc and b/Project/Service/func/__pycache__/modify.cpython-311.pyc differ
diff --git a/Project/Service/func/__pycache__/order.cpython-311.pyc b/Project/Service/func/__pycache__/order.cpython-311.pyc
index 5481e78..71a6408 100644
Binary files a/Project/Service/func/__pycache__/order.cpython-311.pyc and b/Project/Service/func/__pycache__/order.cpython-311.pyc differ
diff --git a/Project/Service/func/__pycache__/search.cpython-311.pyc b/Project/Service/func/__pycache__/search.cpython-311.pyc
index c70dc8f..66bf51b 100644
Binary files a/Project/Service/func/__pycache__/search.cpython-311.pyc and b/Project/Service/func/__pycache__/search.cpython-311.pyc differ
diff --git a/Project/Service/func/book.py b/Project/Service/func/book.py
index ca0adca..6252349 100644
--- a/Project/Service/func/book.py
+++ b/Project/Service/func/book.py
@@ -35,6 +35,10 @@ def book():
                 passenger[key] = request.form.get(f'passengers[{i}][{key}]')
             passengers.append(passenger)
 
+        if not passengers:
+            flash("请至少添加一位乘客", "error")
+            return redirect(url_for('index'))
+
         conn = pymysql.connect(**db)
         cursor = conn.cursor()
         
@@ -85,7 +89,7 @@ def book():
             conn.rollback()
             print(e)
             flash("订票失败", "error")
-            return redirect(url_for('search'))
+            return redirect(url_for('index'))
         
         finally:
             cursor.close()
diff --git a/Project/Service/func/modify.py b/Project/Service/func/modify.py
index 51771b0..078e16f 100644
--- a/Project/Service/func/modify.py
+++ b/Project/Service/func/modify.py
@@ -12,7 +12,7 @@ def verify_user(cursor: Cursor, phone_number: str, password: str) -> str:
     record = cursor.fetchone()
     if not record:
         return "NO_USER"
-    if record[0] != password:
+    if record['Password'] != password:
         return "WRONG_PASSWORD"
     return "USER_VERIFIED"
 
diff --git a/Project/Service/func/order.py b/Project/Service/func/order.py
index 25bdd2d..7c6aeae 100644
--- a/Project/Service/func/order.py
+++ b/Project/Service/func/order.py
@@ -38,6 +38,14 @@ def order():
     """
     cursor.execute(tickets_sql, (order_id,))
     tickets = cursor.fetchall()
+    
+    seatClass2Chinses = {
+        'First Class': '头等舱',
+        'Business Class': '商务舱',
+        'Economy Class': '经济舱'
+    }
+    for ticket in tickets:
+        ticket['Seat_class'] = seatClass2Chinses[ticket['Seat_class']]
 
     cursor.close()
     conn.close()
diff --git a/Project/Service/func/search.py b/Project/Service/func/search.py
index ab35941..ff95d33 100644
--- a/Project/Service/func/search.py
+++ b/Project/Service/func/search.py
@@ -1,4 +1,4 @@
-from flask import render_template, request, g, abort, redirect, url_for
+from flask import render_template, request, g, abort, redirect, url_for, flash
 from .config import db
 from .utils import get_cities
 import pymysql
@@ -13,6 +13,10 @@ def search():
     departure_date = request.args.get('departure-date')
     passengers = int(request.args.get('passengers', 1))
 
+    if not departure_city or not destination_city or not departure_date or not passengers:
+        flash("请填写所有查询条件", "error")
+        return render_template('search.html', cities=get_cities(), flights=[], username=g.name)
+
     # Date validation
     try:
         departure_date_obj = datetime.datetime.strptime(departure_date, '%Y-%m-%d').date()
diff --git a/Project/Service/templates/index.html b/Project/Service/templates/index.html
index e82183d..366080f 100644
--- a/Project/Service/templates/index.html
+++ b/Project/Service/templates/index.html
@@ -7,6 +7,19 @@
     <link rel="stylesheet" href="{{ url_for('static', filename='css/index.css') }}">
     <script src="{{ url_for('static', filename='js/index.js') }}" defer></script>
     <script src="https://cdn.bootcss.com/blueimp-md5/2.12.0/js/md5.min.js"></script>
+    <script>
+        window.onload = function() {
+            {% with messages = get_flashed_messages() %}
+            {% if messages %}
+                var message = "";
+                {% for msg in messages %}
+                    message += "{{ msg }}\n";
+                {% endfor %}
+                alert(message);
+            {% endif %}
+            {% endwith %}
+        };
+    </script>
 </head>
 <body>
     <header>
diff --git a/Project/Service/templates/search.html b/Project/Service/templates/search.html
index d847f69..37a134d 100644
--- a/Project/Service/templates/search.html
+++ b/Project/Service/templates/search.html
@@ -5,6 +5,19 @@
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>航班搜索结果</title>
     <link rel="stylesheet" href="{{ url_for('static', filename='css/search.css') }}">
+    <script>
+        window.onload = function() {
+            {% with messages = get_flashed_messages() %}
+            {% if messages %}
+                var message = "";
+                {% for msg in messages %}
+                    message += "{{ msg }}\n";
+                {% endfor %}
+                alert(message);
+            {% endif %}
+            {% endwith %}
+        };
+    </script>
 </head>
 <body>
     <header>