What actually happens when you cancel — and why there's no reschedule button.
If plans change, cancelling takes one click from the meeting's details card. No confirmation prompt stands between you and it — so make sure it's the right one before you click.
Find it on the calendar, via search, or from the sidebar's Up next list, then click to open its details card.
Shown on the card for any meeting that isn't already cancelled. It fires immediately — there's no "are you sure?" step.
The calendar block turns grey and gets a strikethrough, right away.
Cancelled meetings aren't deleted — they stay visible (as Cancelled) on the calendar for your own reference.