dialogue: Mikey: Can I help you?
  Vivianna: Yes. How much are these T-shirts?
  Mikey: They are 12 dollars 50 cents each.
  Vivianna: I like the green one, but it isn't big enough. Have you got a larger size?
  Mikey: Just a minute. No. I'm sorry. We haven't. What about the black one?
  Vivianna: No, it's too dark. I prefer something lighter, yellow or pink.
  Mikey: How about the pink one?
  Vivianna: Yes, that's nice. I'll take it.
  Mikey: That's 12 dollars 50 cents then please.
  Vivianna: Here you are.
summary: Vivianna buys a pink T-shirt for $12.5 with Mikey's help.