Fools Die. by Mario Puzo.
Book II. Chapter II. Part 7.

They were all at the end of their bankrolls, they would all have to move on soon, except maybe Cully. Cully was part pimp and part tout. Always trying to work a con to get an edge on the casinos. Sometimes he got a blackjack dealer to go partners against the house, a dangerous game.

The girl, Diane, was really an outsider. She worked as a shill for the house and she was taking her break from the baccarat table. With them, because these were the only three men in Vegas she felt cared about her.