answer: #Person1# shows a high-tech helmet to #Person2#. #Person2# thinks it amazing and will buy one.
documents: #Person1#: Hello, madam. Would you like to take a look at our products? They are high-tech items.
  #Person2#: Hmm, they look interesting. Can I have a copy of your brochure?
  #Person1#: Sure. Do you have a minute? Why don't you have a seat and let me show you how to operate this item?
  #Person2#: OK. Go ahead.
  #Person1#: You see, if you press this red button, the helmet becomes an umbrella.
  #Person2#: How amazing! I have never seen it before. Is it expensive?
  #Person1#: It only costs you 20 dollars for one.
  #Person2#: OK, I will take one.