A: Tomorrow I'm going to need a wake-up call. B: Not a problem. What time shall we call you? A: I always hit the snooze button, so give me two calls, one at 7 and another at 7:15. B: It'll be our pleasure. We'll call you at 7 and then at 7:15. A: Oops, cancel that. Change the second call to 7:30, will you, please? B: No sooner said than done. Can I help you with anything else? A: No, that's about it for now. B: Okay, sir. Have a pleasant evening.