answer: #Person1# wants to mail some books and clothes to Australia. #Person1# keeps taking out some stuff until it only costs $15 and refuses #Person2#'s offer on insurance and express shipping.
documents: #Person1#: Hello, I'd like to mail these books and clothes to Australia. How much will that cost?
  #Person2#: It depends on how much they weigh. Let's see, it's 5 pounds. So that will be $30.
  #Person1#: Let me take some stuff out to make it cheaper. There, how much now?
  #Person2#: It's 4 pounds now, so that will be $25.
  #Person1#: OK, I'll take out a few more items. Alright, how about now?
  #Person2#: Now it comes to $15 at 2 and a half pounds.
  #Person1#: OK, that works. Can I get a shipping number so that I know when it arrives?
  #Person2#: Yes, of course. We also offer insurance for $5.
  #Person1#: No, thanks.
  #Person2#: Would you like express shipping for an extra $10?
  #Person1#: No, regular shipping is fine.