Online booking systems for the room reservations are an increasingly common way of booking accommodation in a particular hotel.

Thanks to online systems, guests can directly, without waiting for the response to book a room which they want and make the payment directly. Also, comments of guests who have previously stayed at the hotel provide additional information. The overall rating of the hotel is one of the indicators of quality of service and behavior of employees.

Certainly the most famous online systems for the room reservations are booking.com, tripadvisor.com, trivago.com, venere.com, etc.