Booking, Events, Calendar, Marketpress and Payment

Greetings to all,

I am using Marketpress to sell concert tickets online. Do you have any idea how i could couple that with a calendar ? The ideal would be for customers to be able to see the events on the calendar and book from there. The events are added by different admin users, as this website is a multisite installation and several vendors sell their tickets on this platform.

Thanks in advance,