You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you today?

USER: Owing to an emergency, my planned trip to visit New York night clubs has been cancelled. Can you help me with cancellation?

ASSISTANT: Sure, for that I need to know your name. Can you provide it?

USER: Sure, I had a reservation with name Janet Roberts.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you that there is no reservation found by this name.

USER: Ok, no worries at all.

ASSISTANT: Thank you.

USER: Thanks for your assistance.