In your navigation bar on the left hand side of the page, there is a ‘Calendar’ tab.
Click on the tab and it will take you to the below page…
Here you will have an over view of your sessions.
You can click on each session and view the details
Select the menu icon: on the right hand side.
This will bring up the option to ‘Cancel Session’
Click this and the below box will appear…
Enter a reason why you are canceling. Then select ‘Send cancellation request’.