In this activity diagram, the Tour Management System illustrates the customer's journey from searching for tours to completing a booking. The process begins with the customer searching for available tours and viewing their details. If a tour is available, the customer selects it, proceeds to book, and makes the payment. Upon successful payment, a confirmation is sent to the customer. If the payment fails, the system allows the customer to retry. If no tours are available, the customer is notified, and the process ends. The diagram focuses on delivering a seamless and customer-centric booking experience.