Hi.
user
Hello, how may I help you?
assistant
Could you help me to amend my existing reservation?
user
Sure, we are here to help you. May I know your name please?
assistant
Debra Robinson here.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
Ok, not at all problem. Thank you for the information.
user
Thanks for contacting us.
assistant