"a reservation that is improved; \"I got an upgrade to first class when coach class was full\""@en-us . "0"^^ . . . . . "upgrade"@en-us . . . "105460683"@en-us . . "a reservation that is improved; \"I got an upgrade to first class when coach class was full\""@en-us . . . . "105795654"^^ . "05795654-n"^^ . . "0"^^ . . "upgrade"^^ .