- Your parents aren't home?
- No, they both work.

5 seconds sound clip from the WarGames (1983) movie soundboard.

You can hear this line at 00:19:55 in the Blu-ray version of the movie.

Quote context

[...]

- Make a left.

- Why don't you come up to my house and I'll show you.

- What are you gonna show me?

- I'll show you how to do it.

- Hi, Bo.

- Oh, hi, Bo!

- Bo! Bo! Bo...

- Her room's upstairs.

- Your parents aren't home?

- No, they both work.

- Ooh! Oh... Little mess.

- It's OK. You should see my room.

(Computer beeps)

- You're really into computers, huh?

- Yeah.

[...]