Outlook - Using Equipment and Room mailboxes to create meetings.
In Outlook go to Calendars > New Meeting
In the dialogue that appearschoose Rooms...
You will be shown a list of rooms or equipment bookable in your business, double click on the one required and then press OK
Choose a time and date and then hit Send.
You can see the room availability in the bottom right "Suggested times:" area. The event will then show in your own and the calendar of the room/equipment.