You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you.

USER: Owing to an urgency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, I am glad to help you in cancelling your reservation. Please allow me a moment to check for your previous reservation status is active or not.

USER: Sure, take your own time.

ASSISTANT: Please provide me your name.

USER: My name is Brandon Carter.

ASSISTANT: Thank you. Sorry Brandon, there is no active reservation have been found under your name in our database to cancel it.

USER: Oh! May be my brother has already cancelled my reservation on behalf of me. Thank you for providing information.

ASSISTANT: Thank you for opting us.