A、Because the man did not register his name. B、Because the man did not cheek in. C、Because the clerk forgot to register his name

M: I’d like to check in, please.
W: Awfully sorry, sir. There are no rooms available now.
M: But I reserved a room the day before yesterday.
W: Sorry. May I have your name?
M: Tom White.
W: Please wait a minute. Let me check... Excuse me, but I can’t seem to find your name on our list. Are you sure you have a reservation for tonight?
M: Of course, I did it myself.
W: I’m terribly sorry. There must have been some mistake. Let me check again... Oh, yes. There is a name listed as Tom Right. It must be the fault of the clerk who registered your name. I apologize.
M: Don’t worry about that.
W: According to the records, your reservation is for a single room with shower and air conditioner for two nights. The room rate will be ＄100 per night, including 10% tax and 5% service charge. Is that right?
M: Yes, that’s right. I’d like to pay my bill by credit card.
W: May I take a print of your card?
M: Here you are.
W: OK. Now could you fill out this registration card?
M: All right.
W: Your room number is 707. Here is your key. The bellboy will help you to carry the suitcases to your mom. Have a nice evening.