Unable to have RSVP for Interview Schedule with Outlook integration

Summary:

On 25C.

Various document says that with Outlook integration, Interviewers will receive RSVP event with Yes/Maybe/No buttons, but I'm unable to create that.

Here are the steps I've done after Outlook integration is configured.

1.Create a Hiring Team Managed Interview Schedule

Go to a Candidate and create an Interview.

Interview schedule is created.

Email is sent to the Candidate.

Email is sent to Interviewer.

And the event is added to the Calendar.

Based on what I can see, the Outlook integration is working, but why am I not getting the Yes/Maybe/No RSVP? What am I missing?