How to add a title field in comments?

Just like WP posts have title and text, I want to have titles to my comments. Now how do I add it and show them above the comment texts like a title.

1. I need it to have a css name as well.
2. The title needs to be H3.

1. Based on this tutorial , here is an answer to a similar question.
2. This may also help.

I hope this will help you start your journey by some tweaks and adjustment with code.