Hi. I am Betty Wilson.
user
Hello, Betty Wilson. How shall I address you now?
assistant
 I already have an reservation to attend  my meeting, due to some problems meeting place has been changed. So, I need a few changes in my reservation.
user
Ok.
assistant
Can you help me out?
user
Sure, I will help you.
assistant
Thank you.
user
Thanks for waiting.
assistant
Ok.
user
I checked the existing list but of no use that there was no reservation on your name to change.
assistant
Not an issue, thank you for your kind information.
user
Fine, thank you for connecting us.
assistant