[azstar]

Immediately get on the phone and contact the reservations department of the airline you were travelling on and use their resources to confirm you on alternate flights on any other airline via any routing they can find. Then, you'll need to stand in line, maybe for an hour or so, and have the airport reissue your ticket as an "involuntary reroute" so you won't have to pay anything extra. Once the seats have been obtained, in your original reservation record, the airport agents can do their reissuing in just a couple of minutes. It's finding the seats that is time consuming and many airport agents don't want to be bothered with that part of it.