When Tom went to Hollywood to meet up with Woltz to ask Woltz to give Johnny Fontane the part in Woltz' new film, in the beginning both Tom and Woltz were referring to Woltz in the third party

Tom: Johnny Fontane's friend is my client, who'd give his undying friendship to Mr Woltz if Mr Woltz would grant us a small favour

Woltz: Woltz is listening and then What favour would your friend grant Mr Woltz?