- You mean you don't wanna dance anymore?
- Oh, I'd love to.
- You don't you mind if I borrow him for a while, do you?
- No, not at all.

5 seconds sound clip from the The Best Years of Our Lives (1946) movie soundboard.

You can hear this line at 01:57:25.366 in the Blu-ray version of the movie.

Quote context

[...]

- Oh, I can't understand it.

- What?

- Why you're not mad about me.

- I think I'm attractive.

- You are, Woody. You're irresistible.

- Then why do you go on resisting me?

- You know, all marriages don't have to be like that one.

- Which one?

- Your friends, Fred and Marie.

- What's wrong with their marriage?

- Oh, there's nothing wrong with it, except for one slight detail. They just don't like each other.

- Oh, it's murder on the dance floor. Oh, it's awful.

- You mean you don't wanna dance anymore?

- Oh, I'd love to.

- You don't you mind if I borrow him for a while, do you?

- No, not at all.

- Why did you do this, Peggy?

- Do what? What do you mean?

- Calling up Marie and going out like this. Together.

- I did it deliberately.

- Why?

- To prove to myself that what happened this afternoon didn't really happen.

- But it did happen. It had to happen. And if we go on seeing each other, Peggy, it'll happen again.

- Oh, we wanna have a picture taken right over there in a few minutes, huh?

- Fine, I'll be there.

[...]