You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I aid you today?

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

ASSISTANT: Sure, please share your good name?

USER:      Sure, my name is Kevin Lee.

ASSISTANT: Please hold a moment.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

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

ASSISTANT: Thank you.