Are you an American ?
neutral
user
Yeah .
neutral
assistant
Why don't you speak English ?
neutral
user
Oh , my mother is a German , so I can speak German .
neutral
assistant
Oh , do you like Chinese ?
neutral
user
Yeah , I'm eager to learn Chinese , but it is too difficult for me .
neutral
assistant
I want to study German . Can we exchange lessons ?
neutral
user
Very Good . I'd like to do that .
happiness
assistant
When will we begin ?
neutral
user
How about tomorrow night ?
neutral
assistant