You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I need to cancel my reservation, can you help you out?

ASSISTANT: Sure, may I know your good name please?

USER: Myself Charles Phillips.

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

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for approaching us.