response = "not found in the site"

app.py

@@ -50,7 +50,7 @@ def chat(message, site,history):
         response = agent_chain.run(input=message+" site:"+site)
     except KeyError:
         if not response:
-            response = "website not found"
+            response = "not found in the site"
     history.append((message, response))
 
     return history, history