answer: #Person1# says the total charge of a haircut with shampoo is $15 and advises a crew cut for #Person2#.
documents: #Person1#: Can I help you, sir?
  #Person2#: I want to have a haircut.
  #Person1#: Please take a seat. Do you need a shampoo?
  #Person2#: How much is a regular haircut without shampoo?
  #Person1#: $ 10.
  #Person2#: And how much for haircut with shampoo?
  #Person1#: The total charge is $ 15.
  #Person2#: Since it is, I need a haircut with shampoo.
  #Person1#: Well, what shampoo do you prefer?
  #Person2#: SEEK, please.
  #Person1#: ( 5 minutes later ) What sort of hairstyles do you like?
  #Person2#: What hairstyle do you feel will look best on me?
  #Person1#: I think a crew cut is the most suitable for you.
  #Person2#: I have the same idea as you.