You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I will help you to cancel your reservation. May I know your name?

USER: My name is Nicholas Jones.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: Thanks.

ASSISTANT: Welcome, have a nice day.