How to remove planners account in Calendar?

I am testing with Nextcloud for our eCar service and I use Calendar to plan drivers and customers but the account who setup the Calendar and add’s an event is also added as attendee. A driver and the customer are added as attendee, but the creator or planner of the event should not be part of the attendees, unless she/he is part of a group.
Am I doing something wrong setting up the calendar? Or is it indeed not possible, at this moment to delete te event creator?