Update app.py

app.py

@@ -33,7 +33,8 @@ def get_top_sightseeing(city: str, count: int) -> str:
     if results:
         return f"Top sightseeing locations in {city}:\n" + "\n".join(f"{i+1}. {r['title']}" for i, r in enumerate(results[:count]))
     else:
-
+        return f"No sightseeing data found for {city}."
+        
 @tool
 def my_custom_tool(city:str, season:str)-> str: # it's important to specify the return type
     """