Book a hotel in the same way, stay first and pay later. Where can I pay back the money?

City travel APP. When booking a hotel with the same journey, users need to collect the deposit form at the front desk when they check in at the hotel on the check-in day, and return the deposit form to the hotel in order to complete the settlement. And after check-out, the user can pay the bill through the "live first and pay later" function on the same travel APP, and the accommodation fee can be paid.