i just booked a saver ticket on alaska and when trying to select seats on the alaska site, it says "Saver fares don't allow seat changes after purchase. However, you can still purchase Premium Class seats for anyone on your itinerary. Saver fare rules still apply." and doesn't display any of the saver seats as available. when looking at the seat preview on the site, there are plenty of saver fares. gonna chat/call them and see if its possible to select