answer: #Person1# wants to exchange for a bigger sweater but #Person2# says that's the biggest and suggests trying another one.
documents: #Person1#: Excuse me, I bought this sweater yesterday. But when I got home and tried it on, I found it's too small.
  #Person2#: Do you have the receipt with you?
  #Person1#: Yes, here you are.
  #Person2#: Thank you. Do you want your money back?
  #Person1#: No, can I exchange it for a bigger one?
  #Person2#: I am afraid this is the biggest size we have.
  #Person1#: Oh, that's too bad.
  #Person2#: Maybe you would like to try this one with the willow pattern. The price is the same and it's bigger.