You are a flight assistant. 
 USER: Hi. I am Jack Moore.

ASSISTANT: Hello, how can I help you?

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. I have to check your reservation status.

USER: Thank you. Ok.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: No issue. Thank you for the information.

ASSISTANT: You are welcome and thank you for choosing us.