fix

app/api/routes.py

@@ -224,7 +224,10 @@ async def booking_trip(request: Request) -> Response:
                     if trip["route"] and trip["route"]["name"] not in routes_name:
                         routes_name.append(trip["route"]["name"])
                 text = [" | ".join(map(str, routes_name))]
-                return DialogFlowResponseAPI(text=text)                
+                parameters = {
+                    "trip_list": routes_name
+                }
+                return DialogFlowResponseAPI(text=text, parameters=parameters)                
             
         text = [f"Hệ thống không tìm thấy tuyến xe **{raw_departure_city}** - **{raw_destination_city}**.\n Quý khách vui lòng thử lại với lộ trình khác hoặc liên hệ Trung tâm tổng đài 1900 6067 để được hỗ trợ."]
         payload={

app/types/Respone.py

@@ -14,10 +14,16 @@ class Message(BaseModel):
 class FulfillmentResponse(BaseModel):
     messages: List[Message]
 
+
+class SessionInfo(BaseModel):
+    parameters: Dict[str, Any]
+
+
 class DialogflowResponse(BaseModel):
     fulfillment_response: FulfillmentResponse
+    sessionInfo: Optional[SessionInfo] = None
 
-def DialogFlowResponseAPI(text: List[str], payload: Optional[Dict[str, Any]] = None):
+def DialogFlowResponseAPI(text: List[str], payload: Optional[Dict[str, Any]] = None, parameters: Optional[Dict[str, Any]] = None):
     """
     Hàm tạo JSON response cho Dialogflow CX, hỗ trợ payload tùy chỉnh.
     """
@@ -29,7 +35,8 @@ def DialogFlowResponseAPI(text: List[str], payload: Optional[Dict[str, Any]] = N
         messages.append(Message(payload=payload))
 
     response_data = DialogflowResponse(
-        fulfillment_response=FulfillmentResponse(messages=messages)
+        fulfillment_response=FulfillmentResponse(messages=messages),
+        sessionInfo=SessionInfo(parameters=parameters)
     )
 
     return JSONResponse(content=response_data.model_dump())