You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, we are here to help you. Please hold a moment, let me check your reservation and revert to you.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately no reservation found with provided name.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for approaching us.