The market at this time is indifferent to customer service. All the airlines are as full as they can possibly be and could in fact be even more full if they could provide crews and aircraft to support it. I haven't had a single flight that had more than a dozen seats unfilled in the last 2 yrs. That's true for redeyes, weekends, holidays and Tuesdays. It doesn't seem to matter as demand is off the charts.

You can literally strand people all over the country for three days during the holidays, and the next day people will log in and say, "hey look it's only $300 to go to CANCUN for the weekend."