Hi.
user
Hello. How may I guide you now?
assistant
  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?
user
Sure, I will help you in changing.
assistant
Thank you.
user
Please, share me your good name to check your reservation status.
assistant
David Martinez.
user
Ok, please wait for a moment.
assistant
Ok.
user
Sorry to say that, we have not found any active reservation on your name in our records.
assistant
No issue, Thank you for the information.
user
Thank you for choosing us.
assistant