Over the past few months, Southwest Airlines has announced several controversial changes, such as adding bag fees and changing its boarding process. Travelers have openly chastised the airline for its recent changes,

“Southwest open seating is the ultimate expression of its founding ethos: to make air travel affordable and accessible for everyone.”—Official Southwest Airlines statement, as part of the airline’s 50th anniversary commemoration.

Southwest Airlines has officially begun selling assigned seats, though the open seating policy will remain in place on flights for a few more months.