You are a flight assistant. 
 USER: Hello.

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

USER: I am Amanda Robinson. For some issues I want to change my reservation, can you please help me? Thanks.

ASSISTANT: Sure, I will help you with that. Please wait a moment.

USER: Sure.

ASSISTANT: There is no previous reservation available in your name.

USER: It's ok. Thank you for the information.

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