If you use the calendar form to schedule a meeting and want to make a reservation for a room or resource you will end up having 2 limited ways to do so:
1. You click on the blue link left of the field (Rooms: / Resources:)
2. You clikc on the button right of the field (Find Rooms... / Find Ressources...)
Lets further assume you want to reserve a room that is restricted to a list of people you don't belong to.
You will get a dialog that allows you to select a room that has booking restrictions (marked with a "do not pass" sign. However, you only could get a idea, what kind of restriction it has by clicking details button in the dialog.
You will get a dialog that doesn't show you the room because it is restricted to other people only. You will have no way to see the persons who may book the room.
A: Don't have 2 ways doing the same thing. Combine option 1 and 2 and redesign to something my boss would understand (see link)
B: Always provide possibilities to fetch information while doing my work. Give me the most important details about the selected room including possible booking restrictions when selected. Provide detail button for rest (a detail button that one would not miss to see.)
C: Display restricted rooms / resources in separate fields but DO display them if they are available at the given time. Separate them maybe with color icon or new icon to make visible which one are restricted to specific groups I'm not in (red) and which one would need permission first (yellow). Sorting them according to "easy to get" so the yellow ones would be on top of the red ones.
D: Check if I'm in a group that might book a restricted room. If I'm eligible deal with the rooms as if they were unrestricted.