I recently was upgraded from SharePoint 2010 to SharePoint 2013 ( Office365 account) . I was able to create a resources reservation form by using the calendar and enabling reservation for resources in SharePoint 2010.
http://office.microsoft.com/en-us/sharepoint-server-help/enable-reservation-of-resources-in-a-calendar-HA101810595.aspx
It seemed that I can't do that in SharePoint 2013. How would you create a resource reservation calendar in SharePoint 2013? I did create a basic calendar but now I have issues with double booking now. Please let me know if anyone has better luck or good solution. Thanks..