You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you for today?

USER: I am Catherine Harris. Can you help me in cancelling my recent reservation?

ASSISTANT: I am glad to help you about that Catherine Harris.

USER: Thank you.

ASSISTANT: I regret to say this Catherine Harris, there is no active reservation with your name to cancel your reservation.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome, thank you for reaching us.