> For the complete documentation index, see [llms.txt](https://hotelizer.gitbook.io/manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hotelizer.gitbook.io/manual/en/getting-started/kratiseis.md). # Reservations General information about reservations. See how you create a reservation but also how you can change them. ### Reservation Reservation is one of the key elements in a hotel program like Hotelizer. The reservation contains basic information such as its **code, date** and **time** the reservation was made, **source**, and of course one or more **stays** (rooms). {% hint style="info" %} We have made a basic choice in Hotelizer and we treat the reservation as a **group** for the following reasons: {% endhint %} * Every single reservation could turn into a group reservation. * Many bookings from the **channels** (eg Booking.com etc.) come **as group** with a specific booking code. * We can easily **add one or more** rooms to a reservation that concerns the same company * Each room (stay) in a reservation can have **different duration** and **information** * It is easier to see and manage cases where we have made a **split**. When a customer stays in one room and we transfer him to another for various reasons such as because we do an upgrade. * **Pricing** is **easier** and **better manageable** * We can make a **mass arrival & departure** of a reservation with many rooms ### Accommodations / Rooms Each booking has at least one **stay** (**room**). There cannot be accommodation that does not belong to a reservation. Changes that are made on the stays and mainly concern prices & condition, also inform the reservation. For example if you change prices in a room then this action will affect the whole booking. If you change the status of the stay by checking in then **the reservation will be updated accordingly**. {% hint style="info" %} The accommodations are the ones that will appear in the **Calendar** but also in several lists such as **arrivals & departures, cleaning**, etc. {% endhint %} Each stay has more information in addition to the reservation: * **Guest** details * **Room type** & **room** (if the allocation has been made) * **Dates** & arrival/departure **time** * **Persons** , **adults** & **children** * **Rates** & **board** * **Price** * **Tasks** & **preferences** * **Reservation** status (Confirmed, In House etc.)