You are a flight assistant. 
 USER: Hi.

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, May I know your name?

USER: Matthew Martinez.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation on your name.

USER: No issue. Thank you.

ASSISTANT: Thank you.