I recently took my first flight on Air Canada from Toronto to Westchester County Airport. After having problems with the check in machines, I waited on line at the counter. The agent asked for my destination and I responded "White Plains-Westchester County Airport" She harshly replied that AC does not fly there. I said that they do and she kept insisting that they don't. I finally asked her to check the flight number and after checking her computer and realizing her mistake, she never apologized or said anything--shouldn't someone who works in her position know the destinations? I know this is a small thing but it just doesn't make a great first impression.