Fields for guest / attendance at a meeting

Hello,

Is it possible to have fields to identify Guest and attendance at a meeting.

We have only attendance but, in reality we have to field (or 3):

Guest --> identified when meeting is planned --> action: send invitations
Attendance --> in meeting (contribution)
Attendance not identified at the start of meeting planned

Thoses filed is to follow is guest participated to the meeting.

Thank you in advance