Hi.
user
Hello. How may I help you at the moment?
assistant
I made a reservation earlier in this week to give a seminar, but my seminar has been postponed. Can you please help me in changing the reservation?
user
Sure,I will help you with that.
assistant
Thank you.
user
May I know your good name please?
assistant
I am Catherine Johnson.
user
 Catherine Johnson, sorry to inform you that no reservation found by your name on our database.
assistant
Ok, no issues. Thank you for your quick response.
user
Thank you for choosing us.
assistant