- My son Edward.
- How do you do?
- How do you do?

3 seconds sound clip from the Holiday (1938) movie soundboard.

You can hear this line at 00:32:17.035 in the Blu-ray version of the movie.

Quote context

[...]

- Father.

- Yes, Julia?

- Remember... I know what I want.

- Come in, Johnny.

- Oh. Hope I'm not late. I got caught in a traffic jam.

- Father, this is Mr. Case.

- How do you do, Mr. Case?

- How do you do, sir?

- My daughter Linda.

- How do you do?

- How do you do?

- My son Edward.

- How do you do?

- How do you do?

- Oh, Ned, if you and your sisters will do the telephoning you spoke about, I shall try and entertain Mr. Case.

- We'll be back in a few minutes, Johnny.

- What would we do without the telephone?

- I believe you had something you wanted to do, Linda?

- Me, Father? I can't remember a thing.

[...]