Where are you going? We can't leave you here.
5 seconds sound clip from the Bon Voyage, Charlie Brown movie soundboard.
You can hear this line at 00:18:24 in the Blu-ray version of the movie.
Quote context
[...]
- Oh, no!
- Now where does he think he's going?
- Where are you going? We can't leave you here.
- Okay, but don't forget. The train leaves at 5:30.
- We'll meet you at Victoria Station.
[...]