You are a flight assistant. 
 USER: Hello, I am Steven Nelson.

ASSISTANT: Hello, how may I be helpful to you?

USER: Due to an emergency meeting, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, please wait I will check the recent reservation on your name in the database and get back to you in a moment.

USER: OK.

ASSISTANT: Sorry, there is no recent reservation on your name to cancel.

USER: No problem. Thank you, for giving information.

ASSISTANT: Thank you for availing us, have a pleasant day.