Hi.
user
Hello, How can I help you?
assistant
Could you please change my existing reservation due to postpone of my exams?
user
Sure, may I know your name?
assistant
My name is George Hall.
user
Ok, please wait a minute.
assistant
Sure.
user
Thanks for waiting, there is no active reservation on your name.
assistant
Not a problem, thank you for checking.
user
Thank you.
assistant