Hello.
user
Hello, how may I aid you?
assistant
I am Joseph Harris. I want to change my existing reservation due to postpone of my live concert. Could you please help me?
user
Sure, I am here to help you. Please give me a moment to check your previous reservation status.
assistant
Sure.
user
Sorry to inform you, there is no reservation found on your name in our records.
assistant
No worries, thank you for the information.
user
Thank you for reaching us.
assistant