You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve 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, I am here to help you with this. May I know your name please?

USER: Michael Adams here.

ASSISTANT: Ok, please wait for a mean while.

USER: Ok.

ASSISTANT: Sorry to say, that there is no active reservation found as per your name to change it in your database.

USER: No issue, Thank you for the information.

ASSISTANT: You are welcome.