You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I want to cancel my recent reservation, can you please help me in that cancellation?

ASSISTANT: Sure. May I know your name please?

USER: My name is Katherine Hernandez.

ASSISTANT: I have searched online but I could not find your flight reservation to cancel it.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you.