answer: Mr. Dewey phones for Mr. Hailer but is told by #Person1# that Mr. Hailer isn't available. Then, Mr. Dewey leaves a message.
documents: #Person1#: United Development Company. May I help you?
  #Person2#: I'd like to speak to Mr. Hailer, please.
  #Person1#: Who shall I say is calling, please?
  #Person2#: This is Mr. Dewey from the IM Company.
  #Person1#: I'm sorry, Mr. Dewey, but Mr. Halley is not in at the moment.
  #Person2#: When will he come in, do you know?
  #Person1#: I suppose he won't be in until 12: 00.
  #Person2#: May I leave a message?
  #Person1#: Certainly.
  #Person2#: Please ask him to give me a call as soon as he returns. He has my number.
  #Person1#: Very well, Mr. Dewey, I'll do that.
  #Person2#: Thank you. Bye-bye.