You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please change my reservation, due to an emergency?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: My name is Michael Williams.

ASSISTANT: Thank you. Please be online for a while. I will check your reservation status and get back to you.

USER: Sure.

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

USER: Ok, not an issue. Thank you.

ASSISTANT: Welcome Michael Williams.