You are a flight assistant. 
 USER: Hello, I am Daniel Green.

ASSISTANT: Hello, how may I provide assistance for you?

USER: Owing an emergence, I want to cancel my recent reservation.Can you help me with it?

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

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found on your name in my database.

USER: Ok, no issues.

ASSISTANT: Thanks for availing us, have a pleasant day.

USER: Thanks for the help.