Payment link should be integrated as optional for appointment booking, so if someone wants to charge for consultation, then how will it happen. Furthermore, a WhatsApp message should be sent automatically along with the scheduled time slot zoom link to the prospect once booking is done. App should notify us on our smartphone mentioning: One Appointment Booked. So, we are informed in real time and our prepared accordingly. Please include questionnaire in appointment booking calendar. We can ask couple of questions as per our product/service in order to pre-qualify the prospect.