Hello.
user
Hello, how can I help you today?
assistant
I am willing to change my existing reservation. Can you please help me for this?
user
Sure, may I know your good name please?
assistant
Myself Larry Edwards.
user
Ok, please wait for a moment.
assistant
Sure, I will wait for your kind response.
user
Sorry to say that, there was no reservation found with your given name.
assistant
Not a big problem, anyhow thank you very much for checking the status.
user
Thank you for choosing us.
assistant