This is a very common problem among non-dancers trying to get somehow involved WITH dancers, and our particularity and desire for things to go right just as much as the nons often brands us as "snobs", so don't sweat it too much. A lot of nons think that all you have to do is put a coin in, push a button, and things just automatically happen a la 'dance, monkey, dance'... and that just isn't how it works.
What our town did was use the volunteer help of all the local teachers from the studios, then asked volunteers from varyious areas of "celebrity"- TV personalities, commercials that were just too annoying (That Toyota Guy... Gah...), favorite and popular school teachers, people who'd had the same business for a frillion years, etc. Only now... they've run through all of those, and a bunch of people most of us don't even KNOW are on the list for this year- which might get scrapped anyways.
But yeah- always secure the people that MAKE the event FIRST.