You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in cancelling my recent reservation?

ASSISTANT: Sure, I will help you with this. Can you please mention your name for cancelling your reservation?

USER: My ticket was reserved in the name Alexander Brown.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

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

USER: Ok, fine. Thank you for your help.

ASSISTANT: You are welcome and have a pleasant day.