You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your help?

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

ASSISTANT: Sure, I'll help you in cancellation.

USER: Thank you.

ASSISTANT: Can I know your name to check the reservation list?

USER: Nicholas Roberts is here.

ASSISTANT: Thank you for providing your name, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, Sorry there is no active reservation have been found under your name in our database to cancel it.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for approaching us.