Programme : avios

Transfer in from : Amex

Search : http://www.etihad.com/en/plan-and-book/book-redemption-flights/

Book with Partner Airlines

Partners : AirBerlin, AirNewZealand, Alitalia, ANA, AmericanAirlines

GuestSeat availability = Partner award availability

http://thepointsguy.com/2015/02/booking-etihad-award-flights-with-guest-rewards-and-partners/