We'll create fresh WordPress site with Appointment Form Manager installed. You have 20 minutes to test the plugin after that site we'll be deleted.
Create custom appointment form using visual Form Builder & display anywhere using shortcode. You can get a full list of submitted form on admin panel. You can approve/cancel an appointment from plugin settings.
Plugin provides an visual form builder feature on plugins settings page that provide drag and drop form building options.
No need of any coding to build any form that you require.