Update app.py

app.py

@@ -15,8 +15,12 @@ client = OpenAI(
     api_key=api_key
 )
 
+SYSTEM_PROMPT = """You are a helpful AI assistant. Your responses should be informative, polite, and tailored to the user's needs. 
+
+Please think carefully."""
+
 def respond(message, history, model):
-    history_openai_format = []
+    history_openai_format = [{"role": "system", "content": SYSTEM_PROMPT}]
     for human, assistant in history:
         history_openai_format.append({"role": "user", "content": human })
         history_openai_format.append({"role": "assistant", "content":assistant})