Hello. I am Patrick Hernandez.
user
Hello, how can I assist you at present?
assistant
I want to change my existing reservation due to postpone of my seminar. Would it be possible to change my existing reservation?
user
Sure, we are here to assist you to change it. Please wait for a while.
assistant
Sure.
user
Thanks for waiting, there was no reservation found on your name in our database to change it.
assistant
No problem, thank you for your help.
user
Thank you for reaching our service.
assistant