You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you?

USER: I want to cancel my reservation, due to some issue.

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

USER: My name is James Phillips.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry James, there is no reservation found on your name to cancel any reservation.

USER: It's ok. Thank you for your information.

ASSISTANT: Would you like any other help from me?

USER: No.

ASSISTANT: Thank you for contacting us.