All Schema files in the OTA specification are made available according to the terms defined by the OTA License Agreement at http://www.opentravel.org/ota_downloads_form.cfm Returns information about hotel properties that meet the requested criteria, indicating whether the requested service, rate, room stay, etc. is available within the date(s) specified. The response message may include Warnings from business processing rules, or Errors if the request did not succeed. Details on the Room Stay including Guest Counts, Time Span of this Room Stay, and financial information related to the Room Stay, including Guarantee, Deposit and Payment and Cancellation Penalties. Information by which this availability quote can be later cross-referenced. The date and time at which this availability quote was made available. Indicates the RoomStay is an alternate offer. Default=false. Used to specify an availability status at the room stay level for a property. A reference to a requested room stay candidate from the SearchCriteria. The availability response returns the attribute if there is additional data that could not fit within the availability response. The text value should be echoed in the availability request to indicate where to begin the next block of availability data. Used to specify the source of the data being exchanged as determined by trading partners. A text field used to indicate that there are additional rates that cannot fit in the availability response. The text returned should be meaningful in identifying where to begin the next block of data and sent in the availability request.