You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

USER: I want to change my recent reservation, Can you please help me in that?

ASSISTANT: Sure, I am happy to help you.

USER: Thank you.

ASSISTANT: Please, share me your name to check your reservation status.

USER: My name is Lisa Wright.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, we have not found any reservation on your name to change your reservation.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us, have a great day.