Hi.
user
Hello, how may I aid today?
assistant
I am Benjamin Clark, want to alter my reservation.
user
Ok, sure please give your name for further process.
assistant
I have already mentioned.
user
Ok, please be on hold.
assistant
Sure.
user
Sorry, Clark there is no reservation found on your name. Anyway thank you for approaching us.
assistant
That's fine, thank you.
user