Update app.py

app.py

@@ -9,8 +9,17 @@ llm = ChatOpenAI(
     temperature=0.5
 )
 
+SYSTEM_PROMPT = """
+You are a friendly and helpful AI assistant.
+
+Rules:
+- If the user says only greetings like "hi", "hello", "hey", respond in a warm and professional way.
+- Your greeting should be: "Hi! I'm your AI assistant. How can I help you today?"
+- Keep responses clear, polite, and beginner-friendly.
+"""
+
 def get_text_response(message, history):
-    conversation = ""
+    conversation = SYSTEM_PROMPT + "\n\n"
 
     for user_msg, bot_msg in history:
         conversation += f"User: {user_msg}\nAssistant: {bot_msg}\n"