Hello, I am Dorothy Garcia.
user
Hello, how may I be of your help?
assistant
Due to some technical issues my press meeting has been changed  so, can you please change my existing reservation?
user
Sure, please hold on. I will get back to you.
assistant
Ok.
user
Sorry, there is no reservation found with your name to change your reservation.
assistant
Not an issue, thank you.
user
Thanks for opting us, hope to serve you again.
assistant