You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you cancel my flight ticket? As I have postponed my business trip to Los Angeles.

ASSISTANT: Sure, I am here to help you with this.

USER: Ok.

ASSISTANT: May I know your good name please?

USER: I am Anna Gonzalez.

ASSISTANT: Please wait for a mean while.

USER: Sure.

ASSISTANT: Sorry Anna, there is no active reservation found on your name to cancel it.

USER: Not a problem. Thank you.

ASSISTANT: You are welcome.