You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hi, how may I help you?

USER: I would like to cancel my reservation due to an emergency.

ASSISTANT: Sure, May I know your name please?

USER: I am Joseph White.

ASSISTANT: OK. Please wait for a moment.

USER: Sure.

ASSISTANT: There is no reservation found on your Name.

USER: OK. Thank you for your assistance.

ASSISTANT: Thanks for contacting us.