You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I have to change my travel airport codes because I have given a airport code which is far to my current location. So, I need your help. Will you please help me in changing the details?

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: My name is Brain Scott.

ASSISTANT: Please allow me a moment.

USER: Ok.

ASSISTANT: Brain Scott, there is no reservation found under your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.