Can you assure the quality of this air conditioner ?
neutral
user
Yes , ma'ma . There'll be no problem with the quality .
neutral
assistant
What if there's something wrong with it ?
neutral
user
You don't have to worry about it . We have a one year warranty .
neutral
assistant
Are you sure ?
neutral
user
Sure . We have a good after-sale service . Your satisfaction is guaranteed .
neutral
assistant