I want to implement appointment scheduling on my website without relying on third-party applications. Additionally, I want only authenticated users to be able to book appointments. How can I achieve this using API requests or any other method? For instance, users should be able to input their desired time slot and date, after which the bot can make an API call to the website to schedule the appointment. The scheduled appointment should then be displayed in the website's appointment section. It's important to note that my website is fully authenticated and does not utilize any third-party services for booking appointments. Each patient also has their unique patient ID.

what do you mean by your website is fully authenticated

I want to enable users to book appointments exclusively for themselves (when logged in) by providing their Patient ID. Additionally, I want them to be able to retrieve their appointment history through the bot. Can you guide me on how to implement this?