One of our graduates on the market writes:

[F]or callbacks in the coming weeks, you might want to suggest that folks not book flights on American Airlines. Many folks might not have internalized the news coverage of American's ongoing problems — flying American in the coming weeks almost certainly increases the odds of delayed flights and missed connections by a statistically significant margin. Given the tight scheduling of callbacks, I can't see any good reason to risk flying American unless it's the only option, or any good reason that a school wouldn't cover a (reasonably) more expensive ticket on another airline.