Hi.
user
Hello. How may I help you?
assistant
My exams got postponed, can you please help me in cancelling my reservation?
user
 Sure I am here to help you, May I know your good name please?
assistant
I am Paul Thomas.
user
Sorry to inform you that there is no reservation found.
assistant
Ok, no issues. Thank you for your quick response.
user
Thank you for choosing us.
assistant