Can I help you , sir ?
neutral
user
I want to find a book called Gone with the Wind . But I can't find it .
neutral
assistant
Let me give you a hand . The author is ...
neutral
user
Margaret Mitchell .
neutral
assistant
Oh , yes . Here it is .
neutral
user
Thank you very much . I have been looking for it for a long time . Is this the latest edition ?
happiness
assistant
Yes , we have both the paperback and hardcover . which would you want to buy ?
neutral
user
How about the price of the hardcover ?
neutral
assistant
It's $ 25 .
neutral
user
A little bit expensive , but I will buy one . This is $ 25 , here you are .
happiness
assistant