Hi.
user
Hello, how can I aid you?
assistant
Could you please change my existing reservation due to postpone of my exams?
user
Sure, may I know your name to proceed further?
assistant
My name is Donna Adams.
user
We regret to inform you that there is no active reservation found on your name to change.
assistant
Not a problem, thank you.
user
Thank you for contacting us.
assistant