We purchased the tickets at issue from Air Canada (through Expedia). The problem that I am formally denouncing and complaining against, here, is therefore an Air Canada flight, operated by Lufthansa. Re: Air Canada flight 9097 via Lufthansa flight no LH1751, from Athens to Munich on 30 September 2024. An astonishingly long delay was inflicted to us, regarding this flight. We had a connecting flight in Munich, to return home, to Canada. As did numerous other passengers in this flight, to other destinations. Consequently, during the long delay, and afterwards the long flight, we endured stress, anxiety, powerless anger, mental anguish. (By the way, please instruct your employees - at the airport and in the plane -, to refrain in such a situation from making jokes in each other's ear, to laugh and have fun, while the passengers are submitted to a slow, lengthy torture.) This is UNACCEPTABLE. We are not talking about some "modest" airline company, nor some airports situated in a jungle. Air Canada, Lufthansa. A flight from the capital of Athens, to a major city/and airport hub in Germany... We have paid serious money for these tickets. While through our taxes, it is also with our money that our government has saved Air Canada from bankruptcy… Same on you ! Shame on you.…