You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know how best I can help 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, we are here to help you.

USER: Thank you.

ASSISTANT: May I know your name to check the reservation list?

USER: Kimberly Lee here.

ASSISTANT: Ok, please wait a while.

USER: Ok.

ASSISTANT: I am very sorry to inform you that there is no reservation found under your name in our database.

USER: No issue, Thank you.

ASSISTANT: Thank you for approaching us.