answer: #Person2# assists #Person1# to mail a book in an envelop to France.
documents: #Person1#: Excuse me!
  #Person2#: May I help you?
  #Person1#: Yes, I'd like to send this book to France.
  #Person2#: Let me weight it first. That'll be 14 dollars.
  #Person1#: Can it go in an envelop?
  #Person2#: Of course, it's 4 dollars now.
  #Person1#: Do I need stamps?
  #Person2#: No, you don't. We use computers now.
  #Person1#: When will it arrive?
  #Person2#: In a month.