answer: #Person2# helps #Person1# send the parcel of books and newspapers by sea and charges thirteen yuan.
documents: #Person1#: Excuse me, is this the parcel counter?
  #Person2#: Yes, what can I do for you?
  #Person1#: I'd like to send this parcel, please.
  #Person2#: What's in it, please?
  #Person1#: Some books and newspapers.
  #Person2#: OK. please fill in this form and label it.
  #Person1#: Is it all right?
  #Person2#: Yeah. And would you like to mail it by air?
  #Person1#: No, I'd rather send it by sea.
  #Person2#: Thirteen yuan, please. Here is the receipt and change.
  #Person1#: Thank you.
  #Person2#: You are welcome.