answer: #Person2# comes to search for a microwave oven. #Person1# recommends the best seller but #Person2# wants a grey one. #Person1# gets the only grey one in stock and tells #Person2# about its quality and price.
documents: #Person1#: May I be of any assistance?
  #Person2#: I want to have a look at the microwave ovens.
  #Person1#: You can have a broad choice here. Are you interested in a particular brand?
  #Person2#: Not really. What are these toys over there?
  #Person1#: Ma'am, these are complimentary with each purchase. How about that one below the toys? This is the best seller. They are of the latest model that can be found in town.
  #Person2#: I don't like its color. A bit too bright. Do you have a grey one?
  #Person1#: Yes, we do. What a great taste you have! But we only have one left in stock.
  #Person2#: Really? How so?
  #Person1#: You know a good product will always sell! Would you mind waiting for a while, we'll get it right away.
  #Person2#: Okay.
  #Person1#: Here it is. It's very elegant, I think you will like it.
  #Person2#: How about its quality?
  #Person1#: Its durability will be a big surprise to you.
  #Person2#: What about the price?
  #Person1#: 500 yuan. And if you buy it today, there will be a 15 % discount for you.