Escort

A conversation as it sounded:

He: I will walk downstairs too. Somebody could have stall you. One day I have in my walllet 120 dollars and I think it is safe. I look in my locker it is gone. Somebody stall it. You never know. A bad guy could come and take you say, "I am taking you, Kelly*, for my wife." And I will say, "No you cannot take her she helps me with my homework. She is inbal imbal"...How you say im price...
Me: Invaluable
He: "She is imbaluable." And you will say "Oh, my hero."

*My name is not Kelly. I just can't correct him.