Your idea is not perfectly clear to me.

My first impression was that you want to promote 1-day consultancy transactions focused on specialist advisory and/or mentoring.

My second impression was that it would be a idea grooming platform where people get together.

Which are you leaning towards? #1 may sound boring (actually, I find it cool) but I think it has a market, whilst #2 may have a greater appeal but you'd have to build some monetization strategy upon it (and it sounds awfully like co-working spaces for trendy startups)