You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, please wait for a moment.

USER: Sure.

ASSISTANT: May I know your good name please?

USER: Myself Ruth Green.

ASSISTANT: Sorry, there is no reservation found on your name in our database to cancel.

USER: No problem, thanks for checking.

ASSISTANT: Thank you for approaching us.