1.Iwantapackagedealincludingairfareandhotel.我需要一个成套服务，包括机票和住宿2.I'dliketochangethistickettothefirstclass.我想把这张票换成头等车。3.I'dliketoreserveasleepertoChicago.我要预订去芝加哥的卧铺。4.Iwon'tcheckthisbaggage这件行李我不托运。5.I'dliketositinthefrontoftheplane.我要坐在飞机前部6.Imis