Hello.
user
Hello. How can I aid you at this moment?
assistant
I am Susan Harris, I need to modify my reservation as my schedule got postponed. Can you please help me out?
user
Sure, I will help you with that. Please wait  amoment, I will check your reservation status.
assistant
Thank you, ok I will wait for your response.
user
There is no previous reservation available in your name Susan Harris.
assistant
It's ok, anyway thank you for the information.
user
Thank you for reaching us, have a nice day.
assistant