When does the last flight arrive at Cleveland? Where is Mr Ringwood at the time of the call?

F: Hello, Daven Port Travel Agency. Can I help you?
M: Yes, I am calling to ask when the last flight from Detroit to Cleveland departs?
F: At 10:30 pm.
M: And when does it arrive at Cleveland?
F: At 11:30.
M: Thank you very much.
F: You are welcome.

M: Hello, can you put me through to Derek Ringwood? This is Harry McDonald from Sales Department.
F: I’m afraid he is in a meeting right now. But he’ll be back in the office in half an hour. Can I take a message?
M: Yes, can you tell him to give me a call when he is back? I have to check the order with him.
F: OK, I’ll just tell him.