@
Cameron38, thanks for the hint. I'll certainly have to give that website a try.
@
foppishbum, thanks to you too for your assistance via PM.
While awaiting replies here I also called Eva about their booking process. You must first purchase your tickets and after having received your confirmation code you can then go into "Manage Your Trip" to select your seats so you must commit to the purchase before seeing seat availability. It would seem that different airlines do it differently.