You can buy the 2nd same itinerary, round-trip ticket for $99 only. Travel
must be completed by January 31, 2013.
Must use my Delta account and AMEX card to book the flight. You can purchase
either one or two companion certificate.
Please check delta website for details: https://www.delta.com/planning_reservations/plan_flight/online_reservations/
companion_certificates/index.jsp