You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your help?

USER:  I made a reservation earlier this week to give a seminar, but my seminar has been postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure, I'll try to help you in changing an existing reservation.

USER: Thank you.

ASSISTANT: Could you please help me by providing your name to check the reservation status?

USER: Stephanie Miller.

ASSISTANT: Thank you for providing your name, please wait for some time.

USER: Ok.

ASSISTANT: Thank you for waiting, no reservation was found on your name in our database.

USER: No issue. Thank you.

ASSISTANT: Thank you for approaching us.