Flying Blonde

I got this story via email from my dad this morning.

A plane is on its way to Houston when a blonde in Economy class gets up and moves to the First class section. The flight attendant watches her do this, and asks to see her ticket. She then tells the blonde that she paid for Economy class, and that she will have to sit in the back.
The blonde replies, "I'm blonde, I'm beautiful, I'm going to Houston, and I'm staying right here."
The flight attendant goes into the cockpit and tells the pilot and the co-pilot that there is a blonde sitting in First class that belongs in Economy and won't move back to her seat.
The co-pilot goes back to the blonde and tries to explain that because she only paid for economy, she will have to leave and return to her seat. The blonde replies again, "I'm blonde, I'm beautiful, I'm going to Houston, and I'm staying right here."
The co-pilot returns to the cockpit and tells the pilot that he should probably have the police waiting when they land to arrest this blonde woman who won't listen to reason. The pilot says, "You say she's a blonde? I'll handle this. I'm married to a blonde, and I speak blonde."
He goes back to the blonde and whispers in her ear. She says, "Oh, I'm sorry." then she gets up and goes back to her seat in economy. The flight attendant and co-pilot are amazed, and ask him what he said to her to make her move without any fuss. He replies, "I told her, First class isn't going to Houston."