diff --git a/src/BusProNet/XmlParser/BookingParser.php b/src/BusProNet/XmlParser/BookingParser.php
index 3b99988..55ff8a3 100644
--- a/src/BusProNet/XmlParser/BookingParser.php
+++ b/src/BusProNet/XmlParser/BookingParser.php
@@ -156,13 +156,15 @@ class BookingParser extends AbstractParser
         $contactNode = $node->filterXPath('//kommunikation');
 
         if (0 < $contactNode->count()) {
-            $communication = new Communication();
-            $communication->phone = $this->getStringOrNullValue($contactNode->filterXPath('//telefonprivat'));
-            $communication->mobile = $this->getStringOrNullValue($contactNode->filterXPath('//telefonmobil'));
-            $communication->email = $this->getStringOrNullValue($contactNode->filterXPath('//email'));
-            $communication->newsletter = $this->getBoolValue($contactNode->filterXPath('//newsletter'));
+            $personalData->communication->phone = $this->getStringOrNullValue($contactNode->filterXPath('//telefonprivat'));
+            $personalData->communication->mobile = $this->getStringOrNullValue($contactNode->filterXPath('//telefonmobil'));
+            $personalData->communication->email = $this->getStringOrNullValue($contactNode->filterXPath('//email'));
+            $personalData->communication->newsletter = $this->getBoolValue($contactNode->filterXPath('//newsletter'));
+        }
 
-            $personalData->communication = $communication;
+        // assign default dummy address to ensure valid communication data
+        if (empty($personalData->communication->email)) {
+            $personalData->communication->email = 'teilnehmer@ep-reisen.de';
         }
 
         return $personalData;