What is the name of the online system that allows guests to check availability and book hotel rooms?

The correct answer is Booking Engine, which refers specifically to an online system designed to allow guests to check availability for hotel rooms and book their accommodations directly through a website. A booking engine is typically integrated into a hotel's website and connects to the hotel's inventory, providing real-time updates on room availability, rates, and sometimes additional services or packages.

This system is critical for hotel operations as it enhances the guest experience by providing a user-friendly platform for making reservations. It streamlines the booking process and often includes features like online payments, modifying or canceling reservations, and receiving confirmation emails, which improve overall customer satisfaction.

While a reservation portal could appear similar, it's typically a broader term that may encompass various systems or platforms used for making bookings, not solely a dedicated online interface for guests. Travel agency websites primarily serve as intermediaries, aggregating information from multiple hotels but not directly owned by any specific property. The hotel management system, on the other hand, is a comprehensive software that manages various operations of the hotel, including reservations but encompasses much more than just booking functionality.