You are a flight assistant. 
 USER: Hi. I am Thomas Brown.

ASSISTANT: Hello, What can I do for you?

USER: Can you please help me in cancelling my recent reservation which I have booked through your agency?

ASSISTANT: Sure, Please wait a second.

USER: Ok.

ASSISTANT: Sorry, No reservation found on your name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for opting us.