include

Modify the response by including types of responses that are not provided by default.
* unavailable_reason - When a property is unavailable for an actionable reason, return a response with that reason - See Unavailable Reason Codes for possible values. * sale_scenario.mobile_promotion - Enable the mobile_promotion flag under the room.rate.sale_scenario section of the response. * rooms.rates.marketing_fee_incentives - When a rate has a marketing fee incentive applied, the response will include the marketing_fee_incentives array if this flag is provided in the request.