Update conversation.py

conversation.py

@@ -38,7 +38,7 @@ def create_conversation(query: str, chat_history: list, collection_name: str) ->
             memory=memory,
             get_chat_history=lambda h: h,
             verbose=True,
-            return_source_documents=True,
+            return_source_documents=False,
         )
         result = cqa({'question': query, 'chat_history': chat_history})
         chat_history.append((query, result['answer']))