Hello,
We have a regular end user - not an exchange admin or anything fancy. They are not a delegate of the room in outlook. They don't have send on behalf or full access in ECP for the room. However for some reason the room accepts meetings this person schedules while people with Outlook 2007 don't seem to have the same level of access. We would like to make it so their only option is to request to schedule a meeting in that room - not actually create a meeting in that room.