Good morning , sir . Could I be of any service to you ?
neutral
user
Have you got any Chinese paintings ?
neutral
assistant
Yes , we have landscape paintings , figure paintings and flower-and-bird paintings .
neutral
user
I'd like a flower-and-bird painting .
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assistant
Good . How about this picture of cranes with pine trees ? It was painted by a famous Chinese painter in King Dynasty .
happiness
user
Oh , they look just like live cranes . I like this picture very much . How much is it ?
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assistant
One thousand dollars .
neutral
user
It's a lot of money . But the picture is excellent , I'll take it .
happiness
assistant