You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, May I know what kind of service you are looking for?

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 can change your reservation right now. Before that I need to know your good name please?

USER: Nancy Jackson here.

ASSISTANT: Ok, wait for some time I will check the reservation on your name and get back to you.

USER: Ok.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: No issue, Thank you for the information.

ASSISTANT: Thanks for approaching us.