Notification to say event not responded to

Hello!

I enjoy your plugin! I have done a bit of modifications on my own but just some minor things to the CSS.

I am curious if it would be possible to insert some text onto a page for a user that says an event has not been answered/RSVP’d to. For example, if there is an active event they have not answered, to enter the text, “You have an unanswered event!” on a page (or something like this).

Thanks!
Nikolai