Reservation services are systems or platforms that allow individuals to book accommodations, transportation, or activities in advance. These services can be found in various industries, including travel, hospitality, and entertainment. They help streamline the booking process, ensuring that customers secure their desired options without hassle. Typically, reservation services provide users with a range of choices, such as hotels, flights, or restaurant tables. Customers can compare prices, read reviews, and check availability. Popular examples of reservation services include Booking.com, Airbnb, and OpenTable, which cater to different needs and preferences in the market.