You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I am planning to change my reservation to another destination, so can you help me to change my reservation?

ASSISTANT: Sure, I will help you with the flight reservation change. Just wait for a moment please. May I know your name please?

USER: Sure, my name is Carolyn Turner.

ASSISTANT: Thanks for waiting. But I am sorry to say that there is no reservation on your name to change it.

USER: That's ok, thank you.

ASSISTANT: Thank you.