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, may I know your name please?

USER: Patrick Miller.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: Sorry to inform you that there is no active reservation found with your name in our records.

USER: Thank you for your information.

ASSISTANT: Most welcome.