Want To Be Contacted Button / Landing Page

Is there a way to create a simple "Please Contact Me" button where I would receive a notification when someone wants to be contacted. I created a landing page where they would fill in their email address and first name. But is this necessary if the system knows who they are? Could this be done with a more simple button where they don't have to fill anything in? If I can see their emial address, I will know who they are.

Any help is greatly appreciated!

Jason