fix

app/dialogflow/api/v1/dialogflow.py

@@ -246,6 +246,7 @@ async def booking_trip(request: Request) -> Response:
     
     ticket_count = int(raw_ticket_number) if raw_ticket_number else 1
 
+    origin_code, origin_id, origin_ids, dest_code, dest_id, dest_ids = None
     if origin_office:
         origin_code, origin_id = await dialog_service.find_id_and_code_provine_by_name_office(origin_office)
         origin_ids = await dialog_service.find_id_office_by_name_office(origin_office)