You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I need to cancel my existing reservation, which is done recently. Can you please help me out?

ASSISTANT: Sure, we are happy to help you.

USER: Thank you for considering my request.

ASSISTANT: Please provide your good name to proceed further.

USER: Myself Charles Allen.

ASSISTANT: We are sorry to inform you that there is no active reservation on your name in our data.

USER: Not a problem, anyway thank you for the information.

ASSISTANT: Thank you for availing us.