Experts responded to the question of "12306 railway system showing no tickets available, but empty seats found when boarding the train."

Recently, a response was made by ticketing experts from Railway 12306 regarding the question of "Railway 12306 showing no tickets available online, but finding empty seats when boarding". The main reasons for passengers forming the impression that "Railway 12306 shows no tickets available online, but there are empty seats when boarding" during the ticket purchasing process are: first, the seating interval of the "empty seats" does not match the travel needs of the passengers; second, the "empty seats" are newly generated seats that have not been sold after passengers have checked and purchased tickets; third, other passengers may board or disembark in the middle of the journey without following the seating interval on their tickets, resulting in temporary "empty seat" phenomena.