May I help you , sir ?
neutral
user
I need a hat . Would you show me some ?
neutral
assistant
Certainly , here you are .
neutral
user
I like the black one . May I try it on ?
neutral
assistant
Of course . It fits you perfectly .
neutral
user
Yes , I thinks so . How much is it ?
neutral
assistant
It's forty-five yuan .
neutral
user
Can you make it much cheaper ?
neutral
assistant