Hello, I am Pamela Scott.
user
Hello, how may I aid you at this moment?
assistant
Due to sudden change in my conference date I need to cancel my reservation. Can you help me in cancelling my reservation.
user
Sure, please wait for some time, let  me check with your existing reservation status.
assistant
Sure.
user
There is no recent reservation found on your name.
assistant
No problem.
user
Thank you for reaching us.
assistant
Thank you for the information.
user