Update app.py

app.py

@@ -35,7 +35,7 @@ def converse(user_input, chat_history=[]):
         print(x)
         print("message")
         print (mesg)
-        html += "<div class='mesg {}'> {}</div>".format(cls, msg)
+        html += "<div class='mesg {}'> {}</div>".format(cls, mesg)
     html += "</div>"
     print(html)
     return html, chat_history