You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you today?

USER: I would like to change my destination airport code, please help me in changing my existing reservation.

ASSISTANT: Sure, we are here to help you to change it.

USER: Thank you.

ASSISTANT: To proceed further, may I know your name?

USER: My name is Laura Lee.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Ok, I will wait for your response.

ASSISTANT: Thanks for your time, there was no reservation found on your name to change it.

USER: That is ok, thank you for the information provided.

ASSISTANT: Thank you for reaching us.