Update app.py

app.py

@@ -245,7 +245,11 @@ def ask():
         except Exception:
             traceback.print_exc()
 
-
+        # Clear session data for a fresh start next time
+        try:
+            session.clear()
+        except Exception:
+            pass
 
         return jsonify({"answer": answer["output_text"]})
     except Exception as e: