You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to cancel my recent reservation.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Gary Adams.

ASSISTANT: Sorry to inform you that there is no active reservation on your given name.

USER: Thank you for your information.

ASSISTANT: Thanks for contacting us.