get meeting room booking permission

Get-mailboxfolderpermission -identity room1@xyz.com:\calendar

Get-CalendarProcessing -Identity room1@xyz | Select-Object Identity,AutomateProcessing,ResourceDelegates,AllBookInPolicy,AllRequestInPolicy,AllRequestOutOfPolicy,BookInPolicy,RequestInPolicy,RequestOutOfPolicy,AllowConflicts,EnforceCapacity,MaximumDurationInMinutes