Hello. I am Samuel Brown.
user
Hello Samuel, how may I help you today?
assistant
I need to change my reservation, can you help me out please?
user
Sure, I will help you with this. Please wait for a mean while.
assistant
Sure.
user
Sorry Samuel, there is no reservation found as per your name to change your reservation.
assistant
That's ok, no problem. Thank you for your information.
user
You are welcome.
assistant