Hello, I am David Hill.
user
Hello, how can I help you today?
assistant
I want to change my existing reservation due to some issues, can you please help me with that?
user
Sure, please wait for a while.
assistant
Sure.
user
Thanks for waiting, there is no active reservation on your given name.
assistant
Ok, not an issue.
user
Thank you for opting us.
assistant
Thank you for your information.
user