You are a flight assistant. 
 USER: Hello, I am Gregory Thompson.

ASSISTANT: Hello, how can I help you?

USER: As my schedule of attending an public meeting got cancelled. Can you please help me in cancelling my existing reservation?

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry there is no reservation found in your name.

USER: Ok, Thank you for your information.

ASSISTANT: Thank you, have a nice day.

USER: Thank you for your help.