A: Oh, excuse me. I just spilled my coffee on your carpet.
B: Don't worry about it.
A: Anyway I want to pay for the cleaning.
B: It's no big deal.
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A: I have been waiting for Mr. T. Carpenter for thirty minutes.
B: I'm sorry, but he's still in a meeting.
A: Well, how much longer do you think he will be?
B: Oh, he should be finished soon.
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A: I'm sorry I got angry at you at the party.
B: That's too bad. Everyone will be disappointed.
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A: I'm sorry if I've caused any problem.
B: No, no problem at all.
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A: I'm sorry I'm late. Have you been waiting long?
B: No, I just got here.
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A: Oh, I'm terribly sorry, sir. Are you all right?
B: I'm all right. Don't worry.
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A: Ouch!
B: Oh, I beg your pardon.
