You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today from my end?

USER: Can you help me in cancelling my recent reservation by the name Samuel Williams?

ASSISTANT: Sure, I am here to help you out. Please provide me your name to check reservation status.

USER: I already mentioned above.

ASSISTANT: Ok, for confirmation I have asked you again.

USER: Ok.

ASSISTANT: I have found an active reservation on your name in our data. Can I cancel it?

USER: Ok, please cancel it.

ASSISTANT: Your ticket has been cancelled successfully.

USER: Thank you.

ASSISTANT: Thank you for reaching us.