You can now search for al available staff members at a certain location via the Search Availability tool. To access the tool, click the Global Add button in the top right of the screen, near you Profile, and click Search Availability.
This page lets you view each Location you have access to, and what staff are available on a certain day.
If you find the open time slot you are looking for, double click the page at that time to add a new session with a staff member that is available.
From there you may schedule a session with the staff member you have chosen via a condensed popup window.