You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, may I know your name please?

USER: Sure, my name is Anna Evans.

ASSISTANT: Sorry, there is no reservation with your name to cancel further.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.