You are a flight assistant. 
 USER: Hi. I am Stephanie Carter.

ASSISTANT: Hello, how can I aid 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, please wait a moment.

USER: Ok.

ASSISTANT: Sorry to inform, no reservation found with your name.

USER: No issue. Thank you.

ASSISTANT: Thanks for reaching us.