You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Ok, I will cancel the reservation please wait. May I know your name to check the records?

USER: Myself Brenda Williams.

ASSISTANT: Sorry, there is no reservation found on the name Brenda Williams. Sorry for the inconveniences.

USER: Ok, fine. Thank you for informing me.

ASSISTANT: Thank you for availing the service.