code: public function pnrNameChange(RequestOptions\PnrNameChangeOptions $options, $messageOptions = [])
      {
          $msgName = 'PNR_NameChange';
  
          return $this->callMessage($msgName, $options, $messageOptions);
      }
docs: PNR_NameChange
  
  @param RequestOptions\PnrNameChangeOptions $options
  @param array $messageOptions (OPTIONAL)
  @return Result
  @throws Client\InvalidMessageException
  @throws Client\RequestCreator\MessageVersionUnsupportedException
  @throws Exception