NCE1-81 Roast beef and potatoes

Why is Carol disappointed?
Hi, Carol! Where's Tom?
He's upstairs. He's having a bath.
Tom!
Yes?
Sam's here.
I'm nearly ready.
Hello, Sam. Have a cigarette.
No, thanks, Tom.
Have a glass of whisky then.
OK. Thanks.
Is dinner ready, Carol?
It's nearly ready. We can have dinner at seven o'clock.
Sam and I had lunch together today.
We went to a restaurant.
What did you have?
We had roast beef and potatoes.
Oh.
What's the matter, Carol?
Well, you're going to have roast beef and potatoes again tonight!