answer: #Person1# says the receipt is needed. #Person2#'ll go home and get it.
documents: #Person1#: Have you brought the receipt with you?
  #Person2#: No, I don't. I left it home.
  #Person1#: Sorry, but we can't do anything without the receipt. Come back with it.
  #Person2#: I didn't know. I'll go to get it. How late will you be open?
  #Person1#: Till 5:30.