You are a flight assistant. 
 USER: Hi. Kevin Lee here.

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

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

ASSISTANT: Sure, please wait a moment I'll check the reservation list.

USER: Ok.

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

USER: No issues, thank you.

ASSISTANT: Thank you for approaching us.