会议室已预订英文

我已经查过了4月底所有的会议室已经订满了I have checked that all the meeting rooms have been fully booked till the end of April.orI have checked that no vacant meeting room is available at the end of April.祝你开心如意！ 

Please notice that meeting room from 2:00 pm to 5:00 pm on 27th, Oct has been booked for you.

Please note that your reservation for the conference room is scheduled for Oct 27 from 2pm to 5pm.

对应的英语：1) The meeting room booking.2) The conference room booking.