List all connectathon participants

List all the participants for a testing session. Search criteria are available.
A participant is assigned to a type: monitor/vendor/committee
A participant is registered for one to 5 days 
A participant can claim attendance to the social event
A participant can ask for a vegetarian meal

==> there is not always a social event
==> not all events are 5-day long
==> not all events are from Monday to Friday
==> meal is not served for all events
==> vegetarian option might not be always offered (or might not be an option)