curl --request POST \
     --url https://serverroot/api/orderingMobility/v1/orderCancellation \
     --header 'Accept: string' \
     --header 'Content-Length: integer' \
     --header 'X-ATT-ClientId: string' \
     --header 'X-ATT-ConversationId: string' \
     --header 'X-ATT-MessageId: string' \
     --header 'content-type: application/json' \
     --data '
{
  "orderCancellationRequest": {
    "accountGroupId": "a1234567890",
    "cancelOrders": [
      {
        "orderId": "10-123456789012345"
      }
    ],
    "orderContact": {
      "phone": {
        "number": "1234567890",
        "extension": "1885"
      },
      "email": "abell@att.com",
      "contactName": {
        "lastName": "Bell",
        "firstName": "Alex"
      }
    }
  }
}
'