1. Find a conductor in the car: Generally, a conductor will wear a uniform with the conductor's logo. You can find the conductor on the bus and ask them about making up the ticket. They will help you.
2. directly find the dining car: the dining car is generally located in the middle of the train. You can go to the dining car and ask about the ticket replacement.
3. Ask other passengers: If you really can't find a conductor or dining car, you can ask other passengers, who may know the relevant information about 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.
It should be noted that if you need to make up the ticket, you'd better prepare the corresponding documents and funds in advance, so as to complete the formalities of making up the ticket quickly. In addition, if you can't find a place to make up the ticket on the bus, you can also find a ticket window or a self-service ticket vending machine on the high-speed rail platform to make up the ticket.