You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you for the day?

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, we are glad to help you.

USER: Thank you.

ASSISTANT: Can I have your good name to proceed further?

USER: My name is Katherine King.

ASSISTANT: Sorry, there is no active reservation on your name.

USER: No problem, thanks for the help.

ASSISTANT: Thank you for reaching us.