You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER:  I made a reservation earlier this week to give a seminar, But my seminar has been postponed. Can you do the changes in my reservation?

ASSISTANT: Sure, may I know your name please?

USER: I am Amanda Taylor.

ASSISTANT: Please stand by, I will check the reservation list and revert to you.

USER: Ok.

ASSISTANT: We found no reservation by the name Amanda Taylor.

USER: No problem, Thank you.

ASSISTANT: Thank you for choosing us.