I am the front desk of the hotel. A guest booked a room yesterday and paid a deposit, but didn't come. Come and see me today. Should I refund his deposit?

This situation is very difficult, and the best way is to solve it through consultation. There is a lack of communication between you. If you don't arrive at the appointed time, you should take the initiative to call the front desk guests and ask about the situation. If the guest explicitly says that he is coming to stay, then tell him explicitly. If it doesn't arrive, it will be charged for one night. When you receive the deposit, you may write "deposit" instead of "down payment", so it is difficult to handle it. Let's negotiate. Of course, the hotel kept the room and fulfilled certain obligations. Although there are defects, it is unfair to return all the deposits.