Waiter! May I see you for while?
Yes. I'll be with you in a second. Yes, sir? What is the problem?
This is not what I asked for, I'm afraid.
What did you order?
Roast beef.
There must be a mistake. Those are fried oysters. Would you like to keep it or change?
Roast beef, of course. That's what I ordered.
Just a moment and I'll get your order right away. Sorry to cause the inconvenience.