You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my reservation as I have booked my ticket with wrong dates, please help me out.

ASSISTANT: Sure, we are happy to help you. Please let me know your good name to proceed further.

USER: I am Richard Jones.

ASSISTANT: Sorry, there is no active reservation on your name in our records.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for availing us.