Hi. I am Barbara Carter.
user
Hello. How may I help you?
assistant
I already have an reservation to attend a meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation.
user
Please wait for a moment.
assistant
Ok.
user
Sorry, there is no reservation found basis on your details.
assistant
It's Ok, thanks for your response.
user
Thank you for reaching us.
assistant