A: Professor, excuse me, but I need to leave early.

B: What seems to be the problem?

A: I am not feeling well. 

B: What is bothering you?

A: I think I am beginning to have an asthma attack.

B: Would you like someone to walk you over to the Student Health Center?

A: No, I think that I should just go home because I have some medicine there.

B: Do you need a ride home?

A: I live in the dorms across the street, so I'll be OK.

B: OK, then, hope you feel better soon. Check your e-mail for missed assignments.