How to modify a meeting?
There are a lot of options regarding meeting intent change:
Change the time window
After a request, try saying "between 2pm and 5pm" (instead of the regular 9am to 5pm) or "between Nov 7th and Nov 14th" for a specific date range.
Add invitees from the initial request
Use "with" to add invitees
Add or remove invitees after the initial request
Use "add" to add invitees and "remove" to remove them. "Add Octavia"
Clear your schedule for the day
Try "cancel all my meetings today".