Hello.
user
Hello, how can I assist you?
assistant
I would like to change my reservation due to some work at office, so please help me.
user
Sure, may I know your name?
assistant
Sure, my name is Brian Turner from Boston.
user
Thank you, please wait a moment.
assistant
Sure.
user
Thanks for waiting. Sorry, there was no reservation found on your name.
assistant
No problem, thanks for your service.
user
Thank you for choosing us.
assistant