That's good information paperwastage. Thanks for sharing that.
It seems to me Alaska handles these situations far more proactively, at least in the few instances I've witnessed. And the numbers I've experienced have been small - 1 or 2.
By conservatively, is the implication they don't proactively do this, but rather occasionally find themselves in these situations due to web/computer glitches where inventory hasn't refreshed allowing people to continue booking?