In Sydney, I arrived late at the airport (thinking I was on time because I made a confusion with my departure time).

When I checked-in at the airport, the Qantas agent said: "On which flight is your reservation?" "But Sir, this flight is closed!" I was puzzled. The agent called her supervisor, and changed my reservation to the next flight to SIN (less than 1 hour after), despite it was an AF ticket (business class).