Hi.
user
Hello. How can I help you?
assistant
I want to change my existing reservation due to postpone of my client meeting. Can you help me in changing?
user
Sure, I will help you to change your reservation.
assistant
Thank you.
user
Please provide me your name.
assistant
My name is Stephen Anderson.
user
Sorry, no reservation found on your name to change your reservation.
assistant
Not a problem, thank you for the information.
user
Welcome, have a nice day.
assistant