Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation. Can you please help me with this?
user
Sure, we are here to help you.
assistant
Thank you.
user
May I know your name please?
assistant
Sure, Dorothy Hill here.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
Ok, not an issue. Thank you for checking.
user
Thanks for contacting us.
assistant