Abstract: A computerized system is presented to manage invitations to an event. An event organizer presents an opportunity to at least one host to utilize the tickets, while also defining invitation templates for the event. Hosts that accept the tickets use the template to invite guests to use the tickets. If a host rejects the tickets, the tickets are made available to the next host in a queue list. If a host cannot use all of the potential tickets to an event, the system will offer those tickets to other hosts. Similarly, invitations to a guest that are rejected are presented to a next guest on a queue list. The system can present deadlines for responding to an invitation. Furthermore, the system can impose guest requirements on an invited guest, making it clear that the invited guest must bring along one or more additional guests in order to accept the invitation.