Tolong tuliskan contoh dialog yang baik, yaitu dialog the expressions certainty dan uncertainty ! ( mohon bantuannya, aga panjangan dikit

A: have you heard the news? Our field trip is cancelled.
B: are you certain about that? You must have heard it wrong.
A: No. I am absolutely sure. Our headmaster told my parents this morning.
B: well. I guess. I'll spend this summer at my grandma's house.
A: why dont you join me and my family to the beach?
B: really? I can come?
A: sure.
B: well.. I guess I have to say no.. I just remembered it will be my grandma's birthday.. She will be sad if I dont show up.
A: are you sure?
B: yup. Maybe next time. Thanks for invitation anyway. You are the best!