answer: #Person1# helps #Person2# buy a copy of Morning Post and the New Yorker's in $3.5.
documents: #Person1#: Good morning, sir. Can I help you?
  #Person2#: Yes, good morning. I'd like to buy a copy of today's Morning Post.
  #Person1#: Yes, here it is.
  #Person2#: Thank you. How much is it?
  #Person1#: Morning Post is one dollar.
  #Person2#: One dollar? OK, I'm also looking for the New Yorker's. Do you have it?
  #Person1#: Yes, certaninly, sir. Here is the latest issue.
  #Person2#: How much is it?
  #Person1#: That's 2.5 dollars.
  #Person2#: 2.5 dollars. OK, I'll take both of them.
  #Person1#: One newspaper and one magazine, it's 3.5 dollars. Thank you very much, sir.