RSVP plugin help requested

Hi i’ve been looking for an rsvp plugin for wordpress that functions as a middle man between event location and event attendee. Since events will be from a number of different locations I need the ability to designate specific email addresses per event. Most plugins i’ve found only allow me to get notices of rsvp’s that would work but i’m not the promoter and want to automate the process of offering events to my users. I really don’t have the time to manually email event locations lists of attendees and hope someone can help me by recommending a plugin I may not have come across. Any help is welcome.