Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter . Get news about destinations, plus the latest in aviation, food and drink, and where to stay. CNN  —  An idyllic turn-of-the-20th-century inn. A Canadian town neighboring Niagara Falls. Two sisters who took a spontaneous chance on a dream. If you’re thinking this sounds like the premise of a Hallmark movie or an early 2000s TV show, you’d be on the right track — in fact, sisters-turned-innkeepers Kristen and Kathryn