You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: Usually I prefer a connecting flight, but unfortunately my friend has already reserved my ticket with a direct flight. So, I want to change it. Can you please help me with this?

ASSISTANT: Sure, I am glad to help you. May I know your good name to proceed further?

USER: Sure, I am Joseph Phillips.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: There is no reservation found on your name in our database.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for availing us.