A: Hello, I need a wake-up call tomorrow morning.

B: Of course. When would you like the call?

A: Actually, I need two calls, one at 7 and the other at 7:15.

B: No problem. We'll give you both calls.

A: Do you know what, let's change the second call to 7:30.

B: No problem. Anything else, sir?

A: Not at the moment, thank you.

B: Let me know if you do need anything.