Help, need to delete a meeting from a room resource that was created by someone else.

An Executive Assistant created a meeting inviting everyone and booking out the meeting room. Now this Assistant is on long term medical leave. I need to remove this booking so someone else can make it. Anyone know how to do this? I have domain admin rights etc.

Running Exchange 2010.

EDIT: Should also note that I would like to not have to log into the users account to complete this.