You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am Linda Nelson.

ASSISTANT: Sure.

USER: I am planning to change my reservation, can you help me in that?

ASSISTANT: Sure. May I know your name please?

USER: I already mentioned my name.

ASSISTANT: Wait for a moment please. Thanks for your time.

USER: Ok.

ASSISTANT: I have not found your flight reservation to change it.

USER: That's ok, thank you.

ASSISTANT: Thank you.