Dear , can you drive me to the clinic ?
neutral
user
I'm afraid I can't .
sadness
assistant
Why ?
neutral
user
Well , my car won't start . I don't know what's the matter with it .
neutral
assistant
Could it be the battery ?
neutral
user
No , I don't think it could be . I checked the battery two days ago.It must be other problems .
neutral
assistant
Well , I suppose it could be the gas .
neutral
user
No , there is plenty of gas . I filled it up yesterday .
neutral
assistant
Perhaps it's the starter then ?
neutral
user
Yes , that's possible .
neutral
assistant