Update app.py

app.py

@@ -5,7 +5,7 @@ def generate_chatml(messages):
     chatml = ""
     for i, message in enumerate(messages):
         if message.strip():
-            role = "<|im_start|>user\n" if i % 2 == 0 else "<|im_start|>assistant\n"
+            role = "<|im_start|>user" if i % 2 == 0 else "<|im_start|>assistant"
             chatml += f"{role}\n{message.strip()}\n<|im_end|>\n"
     return chatml.strip()