You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I guide you today?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I will help you with that. Can I know your name to check your previous reservation?

USER: My name is Patrick Evans.

ASSISTANT: Please be on hold to check.

USER: Sure.

ASSISTANT: We regret to inform you that, there is no reservation found on your name in our records.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a great day.