Can I help you , sir ?   I want to have a haircut .   Please take a seat . Do you need a shampoo ?   How much is a regular haircut without shampoo ?   $ 10 .   And how much for haircut with shampoo ?   The total charge is $ 15 .   Since it is , I need a haircut with shampoo .   Well , what shampoo do you prefer ?   SEEK , please .   ( 5 minutes later ) What sort of hairstyles do you like ? 