玲玲--00
Please tell me if you have booked a flight ticket.这是对方买票的情况。Please tell me as soon as my ticket has been issued. 这是自己买票的情况,让对方一旦出票就通知自己。Please notify us after you've booked the ticket. 这是别人网上订票你作为出票方的回复,让别人完成操作后通知你。
小不点儿淘气
Please tell me if/when you have booked the plane/air/airline/airplane ticket.如果订好机票请告知我。