Navigate to astra.eou.edu.
Locate the event you wish to cancel. You can do this from a calendar or from the Events tab.
From the calendar view:
Click the Edit button [Red Box].
Delete the event with all the meetings under it.
This will remove any recurring meetings. Further down is how to cancel individual meetings.
[Red box] - Click the pencil icon.
[Orange box] - Click Cancel.
[Green box] - Click Save in the top-left corner.
How to cancel individual meetings within an event.
From the meetings tab in the second half of the screen:
[Red box] - Click the pencil icon next to the meeting you would like to cancel.
[Orange box] - Click Cancel.
Do this for all the meetings you would like cancel.
[Green box] - Click Save in the top-left corner.