Update app.py

app.py

@@ -31,6 +31,9 @@ model.config.sliding_window = 4096
 model.eval()
 
 
+system_prompt = "You are a helpful assistant."
+
+
 @spaces.GPU(duration=90)
 def generate(
     message: str,
@@ -41,7 +44,7 @@ def generate(
     top_k: int = 50,
     repetition_penalty: float = 1.2,
 ) -> Iterator[str]:
-    conversation = []
+    conversation = [{"role": "system", "content": system_prompt}]
     for user, assistant in chat_history:
         conversation.extend(
             [