1. Looking for the staff in the car: Generally, the staff will wear uniforms with the conductor logo. You can find the staff in the carriage and ask them about making up the ticket.
2. directly find the dining car: the dining car is located in the middle of the train, so you can go to the dining car to consult about ticket replacement.
3. Consult other passengers: If you really can't find a staff member or dining car, you can consult other passengers and you will know the relevant information of ticket replacement.
4. Use mobile devices: If you have mobile devices, you can download high-speed rail-related apps, contact customer service staff through the app, and ask them about ticket replacement.