You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you for today?

USER: Owing an emergency, I want to cancel my reservation. Can you help me out?

ASSISTANT: Yes, I can help you. Can I know your name for checking your previous reservation?

USER: My name is Brandon Harris.

ASSISTANT: Give me a moment.

USER: Sure, take your time.

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

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for consulting us.