As long as you have an ID card, a single double room is generally about a hundred yuan more expensive than a double room. When you go in, ask the front desk to book a single room. Show your ID card and pay the deposit. The waiter will hand you the room card and deposit slip and tell you which room. As for whether there will be a waiter to take you to the room, I can't say it is the hotel's own decision. But if you can't find it, just ask the front desk clerk and they will tell you carefully. The check-in time is usually from 6 am to 12 noon the next day. Now some hotels may change it to check-out before 2 pm. It is best to ask the front desk for the room fee. When checking out, it will be deducted from the deposit. Pay attention to the room. There may be charged items, so be careful when using them