| AdditionalInfos | Collection of additional information. |
| Answers | A container for collecting answers to custom questions. |
 Comment | This holds information from a specific site on the requested data.An indication of a new paragraph for a sub-section of a formatted text message. |
| ContactInfos | A collection of contacts (e.g. a catering manager, national sales office, management company, franchisee) |
| Dates | A collection of inquiry dates. |
| InsuranceInfos | A collection of Insurance Information |
| References | A collection of recommendation references. |
| ResponseType | This is used to send information about the data that will be returned, specifically when and in what delivery mode.Provides an area to send comments regarding the response. |
| SiteID | This is a UniqueID for this site for this request.An identifier used to uniquely reference an object in a system (e.g. an airline reservation reference, customer profile reference, booking confirmation number, or a reference to a previous availability quote). |
| CrossSellIndicator | When True, the associated site was not included as part of the original Request message, but is being included as part of the Response message as an alternate location. |
| SimilarEventCount | Indicates how many events of a similar size this location has hosted in the past year. |
| AreaID | An identifier of an area as defined by a hotel reservation system. |
| BrandCode | A code that identifies the brand or flag of a hotel, often used for independently-owned or franchised properties who are known by a specific brand. |
| BrandName | The name of a brand of hotels (e.g., Courtyard, Hampton Inn). |
| ChainCode | The code that identifies a hotel chain or management group. The hotel chain code is decided between vendors. This attribute is optional if the hotel is an independent property that can be identified by the HotelCode attribute. |
| ChainName | The name of the hotel chain (e.g., Hilton, Marriott, Hyatt, Starwood). |
| HotelCityCode | The IATA city code; for example DCA, ORD. |
| HotelCode | The code that uniquely identifies a single hotel property. The hotel code is decided between vendors. |
| HotelCodeContext | A text field used to communicate the context (or source of - ex Sabre, Galileo, Worldspan, Amadeus) the HotelReferenceGroup codes. |
| HotelName | A text field used to communicate the proper name of the hotel. |
| TTIcode | TTI hotel reference code. |