You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you for the day?

USER: Can you please help me in changing my reservation as my meeting got postponed?

ASSISTANT: Sure, I will help you with that. May I know your name to check the previous reservation status?

USER: I am Steven Moore.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation found on your name in the database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for availing us.