Hello,.
user
Hello, how may I help you?
assistant
Can you please help me in changing my existing reservation, as my exam got postponed.
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your name please?
assistant
Myself, Frank Johnson.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
Ok, no issues. Thank you for checking.
user
Thank you for contacting us.
assistant