answer: #Person2# calls Mr. Green but #Person1# says he's out. #Person2# will call back later.
documents: #Person1#: Marketing manage office, can I help you?
  #Person2#: Mr. Green, please.
  #Person1#: Sorry, he's out.
  #Person2#: What time you suspect back them?
  #Person1#: Sorry, I am not sure, can I take a message?
  #Person2#: No, thanks. I'll call back later.
  #Person1#: That's fine. please call again later.
  #Person2#: Ok, thank you. Goodbye.