Hi.
user
Hello, how may I help you today?
assistant
 I need to cancel my reservation due to some personal issues.So can you help me with cancellation of my reservation?
user
 Sure, may I know your good name?
assistant
I am Mary Hall.
user
I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
No problem, thank you for the information.
user
Thank you for opting us.
assistant