answer: #Person2# wants to deliver a package and uses a seven-day service with #Person1#'s help.
documents: #Person1#: Hi, what can I do for you?
  #Person2#: I'd like to send this package to France. Can it be delivered in the next five days?
  #Person1#: Yes. We offer an overnight service. It'll cost 70 dollars.
  #Person2#: Ah, that's a bit expensive. Do you have a three-day service?
  #Person1#: No, but we can get your package to France in one week for 40 dollars.
  #Person2#: Well, that sounds good. I'll take that. Is the service guaranteed?
  #Person1#: Yes. We also offer a service where we can track your package. But that will cost 10 dollars extra.
  #Person2#: Oh, I won't need the tracking service...