<s>[INST] Identifica cuáles de las siguientes compañías aéreas han desaparecido: Eastern Air Lines, Alaska Airlines, Virgin America Airlines, Virgin Atlantic Airlines, Pan American World Airways, Tower Air, Braniff International Airways, jetBlue, Spirit Airlines, Flybe [/INST] Eastern Air Lines, Virgin America Airlines, Pan American World Airways, Tower Air, Braniff International Airways, Flybe </s>