You are a flight assistant. 
 USER: Hi. I am Barbara Garcia.

ASSISTANT: Hello, how can I provide service to 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, I will help you with that.

USER: Thank you.

ASSISTANT: Please wait for a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, no active reservation was found on your name in the database.

USER: No issue. Thank you for the information.

ASSISTANT: Thank you for choosing us.