Restrictions: Expires 10/1/2009. Reservations required, subject to availability.  Non-refundable.  Subject to Southwest Airlines Passenger Contract of Carriage.  In the event of over-sale, travelers on passes who are denied boarding involuntarily, are not entitled to compensation nor will they receive refunds for interrupted trip expenses or free delivery of delayed or misrouted checked baggage.  Must mention green, non-revenue, must-ride passes when making reservations.  Not valid unless Flight Coupon and Passenger receipts are attached.  Where offered, travel must take place on published services.  Arrival at your destination must take place on the same day as departure from origin.  Pass cannot be resold, refunded, upgraded, exchanged, extended, reissued, revalidated or used toward payment of other tickets.  Passengers 18 years or older must carry a valid I.D. at all times. Not valid for flights operated by ATA.  Valid only on Southwest-Operated flights within the Continental United States.  Only good for flights booked through Southwest.  Arrive at least one hour prior to departure.