座席を交換する change their seating positions

座席を取っておく book a seat in advance

座席を取って置く reserve a seat

座席を取る get a seat

座席を真っすぐに戻す put one's seat in an upright position●put one's seat upright

座席を前に戻していただけますか? Could you put your seat forward, please?〔機内で〕

座席を替えていただけますか? Could you change my seat, please?《旅／機内／席・シート》

座席を替える change one's seat

座席を替わろうと申し出る〔人に〕 offer to exchange seats with

座席を倒してうたた寝をする recline the seat back and take one's nap

座席を倒して仮眠を取る recline the seat back and take one's nap

座席を倒して昼寝をする recline the seat back and take one's nap

座席を倒す recline one's seat

座席を目いっぱい倒す recline the seat as far as it goes

座席を予約する book a seat●book seats●engage seats●observe a seat●reserve one's space

座席を列に並べる bank the seats

座席カード seat occupied card

座席キロ当たり per seat-kilometer〔運行経費の単位〕