Using a scheduling tool will simplifie appointment booking by allowing users to share their availability and let others book meetings with you easily.
You can use these tools to book demos with your leads, nurture your clients with follow up calls etc...
It's super easy to integrate these tools with folk, to automatically send your leads to folk once they have booked a call with you, or update existing leads with their booking information.
Tools suggested
Calendly
Cal.com
Integration set up
Step 1: Trigger from Calendly (or other) - Invitee created
Step 2: Action in folk - Create Person or Update Person