You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Due to the inconvenience of dates, I want to cancel my reservation, which is done recently. Can you help me in canceling my reservation?

ASSISTANT: May I know your name?

USER: Sure, I am Katherine Rodriguez.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Most welcome.