You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: Can you please cancel my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, May I know your name?

USER: Yes, my name is Brandon Lee.

ASSISTANT: Please wait a second.

USER: Sure.

ASSISTANT: Sorry, No reservation found on your name.

USER: That's ok, thank you for giving the information anyways.

ASSISTANT: Thank you for opting us.