Hi.
user
Hello, how can I help you today?
assistant
I want to change an existing reservation due to sudden change in my trip. Can you help me?
user
Sure, may I know your name?
assistant
I am Larry Green.
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry to say, no reservation found with your name.
assistant
No issue. Thank you for your service.
user
Thanks for reaching us, have a good day.
assistant