You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you for the day?

USER: I am Sandra Green. I want to cancel my recent reservation, can you please help me with this?

ASSISTANT: Sure, I will help you with that reservation cancel.

USER: Thank you.

ASSISTANT: Please hold for a while, let me check your previous reservation status.

USER: Sure.

ASSISTANT: Sorry to tell you that, there is no active reservation found with your name to cancel it.

USER: Ok, no problem. Thank you for your time.

ASSISTANT: Thank you for contacting us.