This document discusses hotel reservation systems. It describes how reservation systems can be more convenient than manual systems for booking hotels. There are advantages like instant availability checks and confirmations, but also disadvantages like needing internet access. Modes of reservation include verbal methods like calling or visiting in person, and written methods like letters, faxes, or emails. Reservations can come from individual travelers, companies, airlines, or governments. Types of reservations include tentative, confirmed with payment guarantees, and non-guaranteed reservations held until a cancellation hour. Information is collected through reservation forms.