May's birthday is coming . Shall we buy her a birthday present or let her choose one for herself ?
neutral
user
I think a surprise party may be better . But I forget when her birthday is .
neutral
assistant
You are such a good father . It's next Sunday .
happiness
user
Sorry . What shall we get for her ?
neutral
assistant
What about a cell phone ? She is old enough to have one .
neutral
user
Good idea . Shall we search on line to find an appropriate one or go to a phone store ?
happiness
assistant
Maybe we can try shopping on line .
neutral
user
Sure . Okay , here is the website .
neutral
assistant
I'm sure that May would love the pink one .
neutral
user
Probably . People's consumptive habit is changing rapidly because of the internet .
neutral
assistant
Totally . Computers bring with them convenience.Oh , what's wrong ?
neutral
user
The computer went frozen .
neutral
assistant