You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: My name is Elizabeth Moore. Owing to an emergency I want to cancel my recent reservation, can you please do it for me?

ASSISTANT: Ok, let me check with your previous booking for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there is no flight available on your request.

USER: That's ok, thank you for the information.

ASSISTANT: Sorry, no reservation found by your name. Thank you for choosing us.