A: 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.