Script Download: GetOSCEXOUserAvailability.ziphttp://gallery.technet.microsoft.com/scriptcenter/Set-User-Retention-Policy-b9883452/
Currently, Outlook Web App (OWA) allows you to check the availability information by using Schedule Assistant. But you still want to have a list of events to track the availability of meeting rooms.
You can find more All-In-One Script Framework script samples at http://aka.ms/onescriptingallery