Hello, I am Dennis Adams.
user
Hello, how can I help you?
assistant
I have a plan to attend one meeting, but due to urgent work I would like to change my reservation. Can you please help me with that?
user
Sure. Please wait for sometime.
assistant
Ok.
user
Thank you for being patient. Unfortunately there is no reservation found by your name.
assistant
Thanks for all your kind help.
user
Thank you and have a good day.
assistant