This is an online booking system for a doctor's surgery, and is created in c++ language. You may need Visual Code Studio or Code Blocks with installed/functioning compiler.
You can also compile and run this code on the terminal using the following commands:
g++ booking_system.cpp
//this is for compiling the file.
./a.out
//this is for running the file.
This program has abilities to validate time and date and stores bookings incase of any double bookings.