Professor, I am going to need to leave class early today.
What is the problem?
I need to go to the airport to pick up a relative.
Are you planning on having someone take notes for you?
Yes, I've got that part covered.
When, exactly do you need to leave?
I don't need to leave until the very end of class.
Fine, but next time try and not have to miss class again.
Thanks, Professor. See you later!
See you later! Drive carefully.