Forms in Custom Report Builder

Also commenting for a customer - would love to see this feature come out! My customer uses a form to capture people interested in a demo and then later sends them a calendar to book the demo. They want to track conversion rates of those who filled out the form and actually did book a meeting, but right now, the closest thing we can get to getting reporting on this is with the performance section of a workflow. They’d like to have a report they can filter by specific time ranges!