Hello.
user
Hello. How may I help you?
assistant
I would like to change my recent reservation. Can you help me?
user
Sure, we are here to help you. May I know your name please?
assistant
My name is Charles Davis.
user
Sorry to inform you that there is no active reservation on your given name.
assistant
No issue, thank you for your time.
user
Thanks for contacting us.
assistant