There is two user . USER A and USER B . If User A has sent the below ics file to the user B then User B is getting his calendar blocked . But User A's calendar is showing empty .

My requirement is whoever is sending the invitation , his calendar should also got blocked , means Attendee and aniser both should get their calendar invitation .

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Your App//EN
CALSCALE:GREGORIAN
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:16010101T000000
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:[email protected]
DTSTAMP:20240101T120000Z
DTSTART;TZID=UTC:20240915T140000
DTEND;TZID=UTC:20240915T150000
ORGANIZER;CN=John Doe:mailto:[email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED:mailto: [email protected]
ATTENDEE;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;CN=Jane:mailto:[email protected]
SUMMARY:Team Sync
DESCRIPTION:Project status update
LOCATION:Google Meet
TRANSP:OPAQUE
STATUS:CONFIRMED
SEQUENCE:0
X-MICROSOFT-CDO-BUSYSTATUS:BUSY
BEGIN:VALARM
TRIGGER:-PT15M
ACTION:DISPLAY
DESCRIPTION:Reminder
END:VALARM
END:VEVENT
END:VCALENDAR

I want to know what param to be modified/added in the .ics file to make it work .

NOTE - The same .ics file works if the aniser mail is different with the attendee mail . But my requirement is both needs to be the same .