answer: #Person1# calls Mr. Smith but #Person2# says Mr. Smith is unavailable now.
documents: #Person1#: May I speak to Mr. Smith?
  #Person2#: He is at the warehouse this morning.
  #Person1#: What time do you expect him back?
  #Person2#: Sorry, I have no idea. You can call him there if you like.
  #Person1#: Ok, I have the number. Bye!