You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I would like to cancel my recent reservation because my brother marriage was postponed, can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Could you please provide your name to check your previous reservation status?

USER: I am Stephanie Walker.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name to cancel your reservation.

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

ASSISTANT: Thank you for opting us.