there are bottom feeder regionals like Mesa that have automated trip trading systems... our very own Flight Attendants have it.. but this pilot's union has put up with a system where you call in to scheduling, pray someone actually answers the phone, and then bother an already burdened scheduler with the complexity of a trip trade...

Failed negotiation on our end? maybe...

I am told this is about to change, and fingers are crossed.. but I've been hearing it since I got here 2 years ago...