I am booked on BA292 the day after Christmas. A few days ago, I noticed that my seats had been moved, and then noticed that the flight is no longer appearing in searches. However, I can still enter my booking and see my seats (which I have attempted to reset). It's a different seating chart now, so I'm assuming they switched it from a 781 to a 789. But since it's not bookable, should I be concerned that our flight has been canceled?