You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you now?

USER: Owing to an emergency, my business conference got cancelled, so I want you to cancel my recent reservation.

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Can I have your good name please to check your reservation status?

USER: Sure, Nancy Clark here.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry Nancy Clark, no reservation has found under your name to cancel.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for choosing us, have  a good day.