answer: #Person2# helps #Person1# choose T-shirts and #Person1# buys three in different colors.
documents: #Person1#: Excuse me.
  #Person2#: Hello sir, may I help you?
  #Person1#: Yes. Can I see that T-shirt on the top shelf please?
  #Person2#: Sure. Here it is.
  #Person1#: How much does it cost?
  #Person2#: 50 dollars.
  #Person1#: 50 dollars. That's too much.
  #Person2#: How about this one? It's on sale for only 35 dollars.
  #Person1#: I don't like that one.
  #Person2#: How about the one next to the black gloves? It's very similar to the one you like.
  #Person1#: That's nice. How much is it?
  #Person2#: 30 dollars.
  #Person1#: That'll be fine.
  #Person2#: Is this color OK, or would you like a different color?
  #Person1#: That blue one's fine.
  #Person2#: Do you need any more of these shirts?
  #Person1#: Yes.
  #Person2#: How many do you want?
  #Person1#: I'll take two more, a red one and a white one.