How to add call schedule functionality iin django python?

I am new to python. I am developing a website in django framework. I have to add a "scheduling a call" functionality in my website in which the user can book a call (name, email, date and time) and also can see the booked slots in calender. I do not know how to do this nor i am able to find anything like this on the internet. Can anyone here help me for it?