You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you?

USER: I am Amanda Johnson. Can you help me in cancelling my recent reservation?

ASSISTANT: Sure, I am glad to help you in your cancellation.

USER: Thank you.

ASSISTANT: There is no reservation found on your name to cancel it.

USER: Its ok, thank you.

ASSISTANT: Thank you for choosing us.