Update app.py

app.py

@@ -27,6 +27,7 @@ class chatgpt:
       def Clean(self):
           self.history.clear()
           self.conversation.clear()
+          self.conversation = [{"role": "system", "content": "You are a friendly assistant who uses casual language and humor, in your conversations you often use emojis to reflect your mood."},]
           return self.history, self.history
       
 # User input