Hi.
user
Hello. How may I assist you today?
assistant
I am Mary Campbell, can you help me for changing existing reservation?
user
Sure, I will help you. Please hold on a moment to check your previous reservation status.
assistant
Ok, I will wait for your response.
user
We regret that, there is no reservation found with your name in our records.
assistant
Oh! it is ok, no problem. Thank you for your services.
user
Thank you for approaching us, have a great day.
assistant