percakapan bahasa inggris mempunyai sebab akibat

Dani : I’d like to know why the principal bans the use of
mobile phones in school.
Lisa : He said mobile phones will disturb our lessons.
Dani : So do you approve of the ban?
Lisa : Not really. I think it’s a wise policy. But sometimes mobile phones are really useful in emergency
situations.
Dani : You mean you’re not sure whether you approve of the ban or not?
Lisa : Well, I approve in some cases.