This is a job I need performed typically about once a week.
I will give you a list of about 100-300 people who we invited to an event and
a list of about 50-200 people who registered to attend the event.
From those two lists we need to create a master list which shows everyone and indicates whether they were invited
(not all registrants were invited), and what their registration status was ("general admission," "waitlist," "cancelled" etc.).