You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Nicole Mitchell.

ASSISTANT: How can I help you Nicole?

USER: Owing to an emergency, I would like to cancel my existing reservation.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Sorry Nicole, no reservation found on your name.

USER: That's fine. Thank you for your information.

ASSISTANT: You are welcome.