System / user tags are not neded ?

app.py

@@ -37,8 +37,8 @@ model_info ={
 def format_promt(message, custom_instructions=None):
     prompt = ""
     if custom_instructions:
-        prompt += f"<|im_start|>system\n{custom_instructions}<|im_end|>\n"
-    prompt += f"<|im_start|>user\n{message}<|im_end|>\n"
+        prompt += f"system\n{custom_instructions}\n"
+    prompt += f"user\n{message}\n"
     return prompt
 
 def reset_conversation():