O365 Calendar + O365 Sharepoint

Hi all, 

We have all user of company on O365 and intranet is on O365 Sharepoint.  We have following requirements

R1. Use O365(Outlook) to schedule meeting.

R2. Book meeting rooms along with attendees.

R3. Allow certain room to be reserved only by Admin

R4. Display only meeting room calendar on intranet(O365 Sharepoint)

R5. Display all meeting of a location(with all rooms) in one calendar on  intranet(O365 Sharepoint)

Thanks in advance for any help or pointer

Richard