Hi, Jack, are you doing anything on Friday night?
Hmm, Friday night?
Yes, the day after tomorrow.
Let me think. Well, I have an appointment with Professor Smith in the morning. And I will attend a lecture in the afternoon. And, oh, yes, my brother just called to say he would fly here that night. I told him I would pick him up.
Oh, that's too bad.
What's the matter?
Well, it's my birthday. I'm having dinner with Joyce and I thought I'd invite more friends and make it a party.
See, I'm really sorry, but I won't be able to make it.