Update app.py

app.py

@@ -76,7 +76,12 @@ if input:
      
     with placeholder.container():
         last_message = message_history[-1]
+        try:
+            pen_message = message_history[-2]
+        except:
+            pen_message = ""
         if last_message:
+            message(pen_message["text"], pen_message["is_user"])
             message(last_message["text"], last_message["is_user"])