Hi.
user
Hello. How may I assist you today?
assistant
Can you please help me in changing my reservation?
user
Sure, can I know your name?
assistant
I am Charles Johnson.
user
Please wait a moment, let me check your details.
assistant
Ok.
user
Sorry, there are no active reservations on your given name to change.
assistant
Ok, no problem. Thank you.
user
Thank you for reaching our service.
assistant