You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. Which help you are expecting from my side at this moment?

USER: I am Katherine Wright, looking for a change reservation service from your end. Can I expect that from you?

ASSISTANT: Sure, I am glad to help you with that, can you please hold on for a moment to check your any active reservation with your name to change a reservation?

USER: Sure, I am planning to change my destination to Atlanta. So please check my reservation details in your database.

ASSISTANT: Katherine, but I did not find any active reservation with your name in my database.

USER: Oh! ok. I think it is already changed by my brother. Anyway, thank you for your supportive service.

ASSISTANT: You are welcome, have a blissful day.