Reserving, also known as BOOKING, is the process of reserving a service or product for future use. It involves making a commitment to purchase or use something at a later date. This could include reserving a hotel room, airline ticket, or rental car. It can also involve reserving a table at a restaurant or tickets to an event. Reserving is an important part of the customer experience, as it allows customers to plan ahead and ensure they have access to the services or products they need.