Air Canada continues its preemptive cancellations ahead of a possible flight attendants' strike, and Canadians are pissed. In response, the carrier issued a 72-hour lockout notice and began cancelling flights on Thursday, continuing into Friday, with plans for a complete pause of Air Canada and Air Canada Rouge flights on Saturday, Aug. 16. "CUPE, Air Canada's flight attendants’ union, rejects agreement to fly Canadians home. Several Air Canada customers who are directly impacted by the preemptive flight cancellations also chimed in. It says that flight attendants perform safety-related duties for free, including tasks like responding to medical emergencies, fires and evacuations.