You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: My name is Ryan Lee. Due to an emergency, I want to cancel my reservation.

ASSISTANT: Let me check with it for a moment.

USER: Could you help me in cancelling the reservation?

ASSISTANT: Sure. Ryan Lee, sad to inform you that no reservation found by your name.

USER: That's ok.

ASSISTANT: Thanks for reaching us.

USER: Anyways, thank you for your time.

ASSISTANT: Have a good day.