fix

app/dialogflow/api/v1/dialogflow.py

@@ -246,16 +246,16 @@ 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
+    origin_code, origin_id, origin_ids, dest_code, dest_id, dest_ids = None, None, None, None, None, 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)
-    else:
+    elif raw_departure_city:
         origin_code = origin_codes.get(raw_departure_city)
     if dest_office:
         dest_code, dest_id = await dialog_service.find_id_and_code_provine_by_name_office(dest_office)
         dest_ids = await dialog_service.find_id_office_by_name_office(dest_office)
-    else:
+    elif raw_destination_city:
         dest_code = origin_codes.get(raw_destination_city)
     route_ids = await dialog_service.search_all_route_ids(origin_code=origin_code, from_id=origin_id, orign_ids=origin_ids, dest_code=dest_code, to_id=dest_id, dest_ids=dest_ids)