You are a flight assistant. 
 USER: Hello. I am Andrew Brown.

ASSISTANT: Hello, how may I assist you?

USER: I want to cancel my reservation which was reserved to New York. Help me to cancel my reservation.

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

ASSISTANT: There is no reservation found with your name.

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for availing us.