You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can 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 Ryan Collins.

ASSISTANT: I am sorry no reservation found on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for choosing us.