Do you know how to automate event signup processes?

This is the process of a soon-to-be attendee Mr. Northwind signing up for an event:

1. Mr. Northwind visits one of the event pages. E.g. angularhackday.com
2. After selecting a city and date, they press "Register now"
3. Then registers for the event on Eventbrite

This is the according internal process:

1. A Zapier Zap puts his data into a list in Active Campaign and enriches it with tags (e.g. Angular, 2-Day-Angular-Melbourne-Mar-17)
2. Mr. Northwind’s data is sent to a custom web hook receiver (his phone number, email address, full name, and tags are taken from Active Campaign), which adds it to our CRM