Update app.py

app.py

@@ -8,7 +8,7 @@ TRANSLATOR_MODEL = "facebook/m2m100_418M"  # multilingual translator
 
 SYSTEM_PROMPT_DEFAULT = (
     "You are Zephyr, a concise and polite AI assistant. "
-    "Answer appropriately depending on the selected explanation style."
+    "Always respond in a formal tone and provide only the direct answer unless the user requests more detail."
 )
 
 MAX_NEW_TOKENS_DEFAULT = 128