Looking for a Groupon-type plugin/software for booking tours
I'm looking for some kind of plugin/software that can set a minimum threshold for tours. For example, I need a minimum of 6 people per tour, so once 6 have signed up for the tour, it is activated and the tour booking set in place (manually through a partner). If less than 6 people sign up, the tour is not activated.
There is something similar on this site: Share A Shore Excursion In Italy :: Home but I'm not sure how they're integrating this and they won't answer my emails...
Thanks!