You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I am willing to help you for this. May I know your name please?

USER: I am Sandra Young.

ASSISTANT: Just a moment, let me check your reservation status in our database.

USER: Sure.

ASSISTANT: Sandra Young sorry for inconvenience, no reservation is found under your name.

USER: That's ok, thank you.

ASSISTANT: Thank you very much for contacting our agency.