You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: The event which I am planning to attend has been cancelled. Could you help me in cancelling my reservation?

ASSISTANT: Sure, I will help you with this. May I know your name please?

USER: My name is Cynthia Johnson.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry Cynthia, there is no reservation found as per your name to cancel your reservation.

USER: Its ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.