The movie I think I saw once on disney channel a long time ago. All I remember is its about a father and daughter who go to this diner and the man meets a really nice woman. His wife had died years before and his daughter isn't too happy with the new lady. She escapes and goes to a dance. That's all I remember about this movie it's a much older one.

Are you sure this is older. It sounds like A Cinderella Story with Hillary Duff.