answer: David's wife calls David, but #Person2# says he is unavailable. She asks #Person2# to tell him to call her back.
documents: #Person1#: Hello. Can I talk to David?
  #Person2#: One second, please. ( a few seconds later, the receiver comes back and says ) Hello?
  #Person1#: Yes.
  #Person2#: I'm sorry. David is out to lunch right now.
  #Person1#: Okay. I'm his wife. Could you tell him to call me back when he returns?
  #Person2#: Sure. Does he know where to call you?
  #Person1#: Oh, thanks. Please tell him to call my cell-phone number.
  #Person2#: Ok, I will.
  #Person1#: Thank you very much.
  #Person2#: No problem.