You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: Would it be possible to change my reservation, which I have done with my name?

ASSISTANT: Sure, may I know your good name please?

USER: My name is Kevin Carter.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found on your name in our database to change.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for approaching us.