It's the Girl in the Red Truck, Charlie Brown

Molly:
[watching out the window] There goes the bus to Phoenix. I should be on that bus.

Jenny:
[picks up a Frisbee for Spike] You know, the kids next door are gonna be looking for this.

[as Jeff and Molly watch Jenny skate]

Jeff:
She loves it here, huh?

Molly:
Skating?

Jeff:
Living on the desert.

Molly:
Yes, she does, probably more than anybody I know.

Jeff:
So I suppose you don't think she's wasting her life either, do you?

Molly:
I don't know. I can't answer for her. But I'll tell you one thing, though: you don't have to be out in the desert to waste her life. You're going to waste your life standing under the Eiffel Tower.

Jeff:
You're probably right.

[last lines]

Jenny:
Jeff, what are we gonna do?

Jeff:
I think we're gonna give you as much time as you need then in a couple of years, when one of us has made our first million, we'll come back to the river and return to our little house. How's that sound, okay?

Jenny:
[smiles] Yeah, thanks.

Jeff:
[as they look back where Spike has left] You don't think we ought to look for Spike?

Jenny:
We don't have to. I already know where he is.

Jeff:
Where's that?

Jenny:
Out there... Home.

[Spike swings a flyswatter acting like he's in a tennis court]

Jenny:
Okay, McEnroe, le's go.