And poor naive Phillip doesn't notice anything about this conversation that isn't on the surface. He just hears 'you got the part' and any other processing doesn't really happen beyond that. He's got his break. It actually happened.

He grins, the brightest smile he is capable of because restraining that is entirely too hard. "Thank you very much!" is what he manages to say, other than making any undignified noises. That's tempting to do.