answer: #Person1# wants to buy a Jade bracelet and asks for its price. #Person2# tells the price is fixed.
documents: #Person1#: I want to buy some jewellery.
  #Person2#: What kind of jewellery do you like to have?
  #Person1#: I should like to look at some bracelets.
  #Person2#: May I show you gold ones or jade ones?
  #Person1#: Jade ones.
  #Person2#: OK, here they are.
  #Person1#: What's the price for this one?
  #Person2#: Eight hundred yuan.
  #Person1#: How about seven hundred yuan?
  #Person2#: I'm sorry, we only sell at fixed prices.
  #Person1#: OK. I'll take it.