You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I benefit you?

USER: I am Raymond White. Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I can help you with that. Please wait for a while so that I will check the reservation list and revert you.

USER: Sure.

ASSISTANT: Thanks for waiting, Unfortunately we could not find any reservation by your name in the list.

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.