answer: #Person2# is helping #Person1# buying hats and offers a discount of 20% if #Person1# buys two.
documents: #Person1#: Do you have any hats?
  #Person2#: Yes, we do. I'll show you several kinds.
  #Person1#: I like both of the two hats. Can you give me a discount if I buy both of them
  #Person2#: Sure, we'll take 20 % off the price.
  #Person1#: I like this colour and it is very bright.
  #Person2#: This color is becoming to you, too.
  #Person1#: Yes, I think so. How much are they?
  #Person2#: The pink one is 30 yuan, and the purple one is 35 yuan.