Hello,. I am Jack Moore.
user
Hello, how could I serve you today?
assistant
I want to change my existing reservation due to some health issues, can you please help me with that?
user
Please wait a moment.
assistant
Ok.
user
Sorry to inform, there is no reservation found with your given name.
assistant
Ok, no issues.
user
Thank you for choosing us.
assistant
Thanks for your service.
user