Demand Api Order Details Booker Output Structure

{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/booking-holdings/refs/heads/main/json-structure/demand-api-order-details-booker-output-structure.json",
  "name": "OrderDetailsBookerOutput",
  "description": "The booker's information.",
  "type": "object",
  "properties": {
    "address": {
      "description": "The booker's address for showing the best price for that user and obeying laws regarding the display of taxes and fees.",
      "type": "object",
      "properties": {
        "city": {
          "description": "The city for this address.",
          "type": [
            "string",
            "null"
          ]
        },
        "country": {
          "description": "The country for this address.",
          "type": [
            "string",
            "null"
          ]
        }
      }
    },
    "email": {
      "description": "The booker's email address.",
      "type": [
        "string",
        "null"
      ]
    },
    "language": {
      "description": "A [IETF language tag code](https://en.wikipedia.org/wiki/IETF_language_tag) that uniquely identifies a supported human language or dialect. **Note:** Demand API only accepts lowercase for the language codes. Examples: \"nl\" for Dutch/Nederlands or \"en-us\" for English (US). To retrieve the full list of supported languages, call the `/common/languages` endpoint in the same Demand API version you are using.",
      "type": "string",
      "pattern": "^[a-z]{2}(-[a-z]{2})?$"
    },
    "name": {
      "description": "The name of the booker.",
      "type": "object",
      "properties": {
        "first_name": {
          "type": [
            "string",
            "null"
          ]
        },
        "last_name": {
          "type": [
            "string",
            "null"
          ]
        }
      }
    },
    "platform": {
      "description": "The booker platform for showing the platform based deals and prices.",
      "type": "string",
      "enum": [
        "app",
        "desktop",
        "mobile_browser",
        "tablet",
        "unknown"
      ]
    },
    "telephone": {
      "description": "The booker's telephone number.",
      "type": "string",
      "nullable": true
    },
    "travel_purpose": {
      "description": "The travel purpose of the booker.",
      "type": "string",
      "enum": [
        "business",
        "leisure",
        "unknown"
      ]
    }
  }
}