Hi.
user
Hello, how may I guide you?
assistant
I am Dorothy Baker. I would like to change my existing reservation. Could you please help?
user
Sure, can I know your preferable dates?
assistant
I would like to travel on 03/23 and return back on 03/25.
user
Please hold on for a moment, let me check.
assistant
Ok, please take your time.
user
I am sorry, there are no reservation with your name.
assistant
Ok, no problem. Thank you for the information.
user
Thank you for your time.
assistant