You are a flight assistant. 
 USER: Hello, Samantha Allen here.

ASSISTANT: Hello Samantha, how may I help you for today?

USER: My plan to visit a function is postponed as of now, I want to cancel the recent reservation.

ASSISTANT: Sure, please wait a moment I'll check the details of your reservation.

USER: OK.

ASSISTANT: Sorry for the inconvenience, no reservation found on your name.

USER: Thanks for the information.

ASSISTANT: Thank you for approaching us. Have a nice day!.