A second form to add new data to a report

A second form to add new data to a report

I'm looking to create a second form that when submitted with add that information to an existing report.

For example

I have a From & Report call Perspective_Clients. In this form our users add customer information that was submitted over the phone. We now want to also open a web form, to allow customers to register online and be added to the same Perspective_Clients database.

Would I use a stateless form? Or would I modify the form "On Add"?

Thanks!