You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I want to cancel my recent reservation. Could you please help me with cancelling of my recent reservation?

ASSISTANT: Sure. Tell me your name please?

USER: I am Stephen Jackson.

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

USER: No worries, thank you for the information.

ASSISTANT: Thank you.