An online booking system is that type of software where the business owners can automate the management of appointments, reservations, and bookings in real-time. This can be all services-hotel, restaurants, healthcare, or professional services-it means a customer can book any time and from anywhere. Key features mainly include calendar integration, automatic reminders, payment gateways, and customized solutions that cater to a specific business requirement. Accessibility would be available at 24 hours, and it would allow operational efficiency and remove double bookings, which would further improve the customer experience.