You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you today?

USER: Please cancel my recent reservation.

ASSISTANT: Sure, may I know your good name please?

USER: My name is Robert Perez.

ASSISTANT: Please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your given name.

USER: Thanks for your helping hand.

ASSISTANT: Thanks for choosing us.