Hello.
user
Hello, how may I help you today?
assistant
I want to change an existing reservation, can you please help me in that?
user
Sure, I am here to help you.
assistant
Thank you.
user
May I know your name please to proceed further?
assistant
My name is William Lewis.
user
Please wait for a while.
assistant
Sure.
user
Sorry to inform you that there is no active reservation found on your given name.
assistant
Ok, that's not a problem. Thanks for your information.
user
Thanks for contacting us.
assistant