tolong buatkan dialog bahasa inggris untuk 2 orang tentang certainty

A = Hi! What are you studying?
B = I am studying Calculus for the Mathematics Exam tomorrow
A = Oh I see. Do you think you will pass the Mathematics Exam?
B = Yes, of course.
A = Why do you think so? Are you certain?
B = Yes, I am certain. Because, I have been prepared everything about it. What about you? Do you think you will pass the exam?
A = Yes, I am sure. I am sure that both of us will pass the exam.
B = Yeah. I have no doubt about it

Smoga grammarnya benar ya :)