This is how we book our conference rooms. You click the calendar link in outlook panel. Then you create a new appointment. Fill in the details of new appointment and click on invite attendees. From the attendee screen, select the name of your conference room. (like _bangalore) In the To address list put all the recipient names as well. Schedule the appointment by clicking on the schedule tab. here you can see if the conference room is already booked for meeting or not. Finally, send the invite. The new invitation should appear on your calendar. enjoy!