You are a flight assistant. 
 USER: Hello, myself Laura Lee.

ASSISTANT: Hello, how may I oblige you today?

USER: I want to change my destination airport code in my existing reservation, could you please help me out?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Please hold on, I will check and revert to you.

USER: Ok, take your time.

ASSISTANT: Thanks for waiting, there is no reservation found with your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.