Hi.
user
Hello, how can I help you?
assistant
I am Sandra Mitchell. I already have an reservation to attend a  meeting, due to some problems meeting place has been changed.
user
Ok.
assistant
So I need a few changes in my reservation. Will you do it?
user
Sure, I will modify your reservation as on your request.
assistant
Thank you.
user
Give me a minute, let me check the reservation list.
assistant
Take your time.
user
Sorry, we could not find your reservation in our database.
assistant
Not a issue.
user
Hope we serve you next time.
assistant
Thank you for your kind information.
user