I simply came here to ask you for a personal favor.

I'd take it as a personal favor if you'd go ahead and release him now.

I'm having my own people arrange security for you as a personal favor.

She was about to ask a personal favor of him.

"All right, but if you did it you'd be doing me a personal favor."

"But I would take it as a personal favor if you wouldn't tell anyone."

"I'd consider it a personal favor if you could come."

"I wonder if you would do me a personal favor."

Friends knew better than to ask his support as a personal favor.

This is a personal favor, a debt, if you like.