answer: #Person2# wants to buy a jacket for his son. #Person1# recommends a blue one and #Person2#'ll come again for a bigger size.
documents: #Person1#: What can I do for you, sir?
  #Person2#: I'm looking for a jacket for my son.
  #Person1#: Come with me, please. Here are jackets for boys.
  #Person2#: The black one is nice. How much is it?
  #Person1#: Twenty five pounds.
  #Person2#: Oh, I'm afraid it's too expensive.
  #Person1#: What about the blue one over there? It looks nice, too. And it's cheaper.
  #Person2#: But it's a bit small. Have you a bigger size?
  #Person1#: Sorry, we haven't. But we'll get some soon. Will you come next week?
  #Person2#: All right. I'll come again.