You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Nicole Miller here.

ASSISTANT: How may I assist you?

USER: Cancel my flight reservation? As my business meeting got postponed.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found on your name. Thank you for consulting us.

USER: Ok, thank you.