Update app.py

app.py

@@ -5,7 +5,7 @@ class chatgpt:
 
       def __init__(self):
           self.model_id = "gpt-3.5-turbo"
-          self.conversation = []
+          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."},]
 
       # Getting responses using the OpenAI API
       def answer_chatgpt(self, api_key, message, history):