You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ryan Walker.

ASSISTANT: How may I aid you today?

USER: Can you please cancel my reservation as my holiday trip has been postponed?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please hold for a moment, let me check with your recent reservation status.

USER: Sure.

ASSISTANT: There is no recent reservation found on your name.

USER: No problem. Thank you.

ASSISTANT: Thank you for availing us.