You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How can I aid you?

USER: I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Could you be my helping hand in changing my reservation?

ASSISTANT: Sure. May I know your name?

USER: Reservation is done with my name Patricia Roberts.

ASSISTANT: Thanks for providing your name, Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no reservation found on your name.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you.