You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you?

USER: I am Amanda Young.

ASSISTANT: Nice to meet you, Amanda.

USER: Can you please change my existing reservation with new destination airport code?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry Amanda, there is no reservation is found as per your name.

USER: It's ok. Thank you for responding.

ASSISTANT: You are welcome.