Script:
Woman: Jack, could I ask you a favor? Could you give me a ride to the airport tomorrow morning?
Man: Possibly. What time do you need to be there?
Woman: My flight is at eleven so I should probably leave around 8:30.
Man: Oh, I′m sorry. I have an appointment with a client tomorrow morning at 9:00 so I′m afraid I
won′t be able to help you.