Automated Mails after a seminar ends

Hi ActiveCampaign experts,

on our wordpress website, we offer many seminars. I would like to send automated emails, when a seminar ends.

When a customer registers for a seminar through a form on the website, I can let a field in ActiveCampaign change to the end date of the seminar. But I cannot seem to find out how to trigger an email, that sends out the email on this date.

Is there a way to do this?

Thank you!

Edit: Would this work? “Seminar ends” is a field of a form that has the date of the last day of a seminar.