Hello.
user
Hello, how may I help you today?
assistant
Can you please help to change my existing reservation?
user
Sure, I am here to help you with this. May I know your name please?
assistant
Thank you. Carolyn Nelson is my name.
user
Please wait for a mean while.
assistant
Sure.
user
Sorry Nelson, there is no reservation found as per your name to change it.
assistant
Ok, thanks for your help.
user
You are welcome.
assistant