Originally Posted by
emcampbe
As I understand it, its often easier for an agent to book in a fare class with available space vs. one that isn't available at all (very possible anything in N has an advance purchase requirement).
Advance purchase requirements don't matter if you're being rebooked INVOL, only open inventory, and we've seen N >= Y for the last several months. That could change, but no one is really betting on it.