用方框中所给的句子填空。请将正确答案的序号填在题后横线上。

Receptionist:    41   Madam?
Alice: I want a single room. I booked（预定）it three days ago.
Receptionist:    42  .
Alice: It’s Alice. Alice White.
Receptionist: Oh, yes. Here it is. You want a single room.
Alice:    43   And if it is possible, I’d like a room on the ground floor.
Receptionist:    44   all the rooms on the ground floor have already been taken. But we do have a nice room that overlooks the hotel swimming pool. It is on the second floor.
Alice: Thank you.    45   is the restaurant still open?
Receptionist: I’m afraid not. But you can order room service.
Alice: OK. Thank you