You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. On what way, can I serve you now?

USER: I am Steven Johnson. Owing to an emergency, I want to cancel my reservation. So please help me in the cancellation.

ASSISTANT: Sure Steven, I will help you with that. Please wait, Let me check your reservation status.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry Steven, There is no active reservation on your name to cancel it.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for your presence.