Thickbox wp-comments-post.php Pop-Ups

Hey everyone,
I am using thickbox on my website, https://www.kimstewart.ca, and I am looking to make use of it with WordPress functionality.

What I mean by this is when a user tries to fill out a comment form at the bottom without entering in their name or email address, instead of going to https://www.kimstewart.ca/wp-comments-post.php and having a rather empty page say “Error: please enter a valid email address”, I would like thickbox to display this warning instead!

Any ideas on how to implement?

Cheers,