Why won’t Dr. Milton come to the clinic tomorrow?

W: Milton Clinic. Can I help you?
M: Good morning. This is Frank Thompson. I want to make an appointment with Doctor Milton, please.
W: OK, Mr.Thompson. We have you on our records. Can you manage it this afternoon?
M: I’m afraid not. I have to meet an important client this afternoon. I won’t be free till tomorrow.
W: I’m afraid Mr. Milton is not on duty tomorrow. He’ 11 be here the day after tomorrow. That’ s Thursday. Can you wait that long?
M: Fine, since there is no better way, I have to just wait.
W: OK! Will 5:20 be all right?
M: Well, yes. But what time is the clinic closed?
W: We start from 9: 00 a.m. and close at 7: 00 p.m. on weekdays. We don’t work at the weekend.
M: I’d prefer a later time so that I can come along after work.
W: Then what about 6: 10?
M: Well, that’s fine.