1.这架班机正点起飞吧?

　　Is the plane on schedule?

　　2.准备好机票与登机牌。

　　Let’s get our tickets and boarding pass ready.

　　3.如果有退票的，请通知我。

　　Please notify me if there is any cancellation.

　　4.请于起飞前一小进到达机场。

　　Please be at the airport at least one hour before departure?

　　You’ll be late if you don’t arrive in one hour before leaving.

　　5.我需要提前多少天付款订票?

　　How long in advance of the flight must I pay to confirm the booking?

　　6. Promises are often like the butterfly， which disappear after beautiful hover。(英译汉)