Hello.
user
Hello, how can I help you today?
assistant
Can you please help me to  change my existing reservation?
user
Sure, I am glad to help you.
assistant
Thank you.
user
May I know your good name?
assistant
My name is Shirley Edwards.
user
Please be on hold.
assistant
Sure.
user
There is no reservation found on your name in our database.
assistant
Ok, not a problem. Thank you.
user
Thank you.
assistant