The Trouble with Angels by Debbie Macomber

A Wing and a Prayer
When irrepressible angels Shirley, Goodness, and Mercy set out for the City of Angels to grant three rush Christmas prayer requests, they are sure they can help without resorting to, er, divine intervention. But they soon find it will take more than one miracle to teach their precious lessons of love - as well as make three special holiday dreams come true!