Thanks to Cypher80b for the video.
To book a flight use these settings. Thanks dragossh!
Options: One Way
From: LA, CA
To: Guam
Departing (use calendar to choose date): 01/21/2009
Flight: 316 - 11:30am
Adults: 10
Children: 0
Promo: 112114111109111
Thanks to David and dragossh for the heads up on a new video over at Ajira Airways when you get to choose your seat.
Source: SpoilerTV Forums