You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Sure, I can help you in that one.

USER: Ok.

ASSISTANT: Please give me a moment to check it.

USER: Sure.

ASSISTANT: I have checked based on your request but I am unable to find your previous ticket booking to help you in cancellation.

USER: That's ok, thank you for checking.

ASSISTANT: It's my pleasure and thank you for opting our agency, have a nice day.