Contact Form instead of Subscription Form

I want to edit the subscription form provided in the themes folder which I have downloaded from Ghost. I am using the Dawn theme right now.
Also, I want to make a contact form instead of a subscription form so wanted to add more fields to it and show the data of contact us queries in the members dashboard only.
Is it possible?

Ghost doesn’t store additional fields for you. You can make a custom layout for the fields collected, but not add fields.

If you actually want a contact form, you’ll need to sign up with a form provider and paste their embed code into an html card on the page where you want it.