You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

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

ASSISTANT: Sure, may I know your name please?

USER: Myself Janet Williams.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for approaching us, have a nice day.