You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Amanda Hill, I need to change my reservation as my exams got postponed. Can you please help me out with that?

ASSISTANT: Sure, please hold on for a moment.

USER: Sure.

ASSISTANT: I am sorry, there are no reservations with your name.

USER: It's ok, anyway thank you for the information.

ASSISTANT: Thank you, have a good day.