Hopefully you don't have tickets to fly on Air Canada next week. Air Canada's largest union is threatening to launch a strike, right at the start of the busy March Break travel period on Monday. The International Association of Machinists and Aerospace Workers represents about 86-hundred mechanics, baggage handlers and cargo agents at the airline. Air Canada says it will try to minimize the impact for its customers, if there's a strike, but they remain hopeful of reaching a deal before Monday's deadline.