Update app.py

app.py

@@ -54,6 +54,7 @@ async def get_response(user_role, user_text, ai_role, chatbot):
     response = ai_roles_obj[role_en].chat(role=user_role, text=user_text)
     user_msg = user_role + ':「' + user_text + '」'
     chatbot.append((user_msg, response))
+    return chatbot
 
 async def respond(user_role, user_text, ai_role, chatbot):
     return await get_response(user_role, user_text, ai_role, chatbot), None