Hello.
user
Hello, how can I help you today?
assistant
I would like to change my existing reservation, which is done recently. Can you please help me out?
user
Sure, I am here to help you with that, may I know your name to proceed further?
assistant
Thank you for considering my request. Myself Dennis Martin.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
Not an issue, anyway thank you for the information.
user
Thank you for contacting us.
assistant
Thank you for your service.
user