Hello.
user
Hello, how may I help you?
assistant
I want to change my existing reservation due to sudden rainfall at my source. Can you please help me with this?
user
Sure, I am here to help you with that, can I know your good name to proceed further?
assistant
Myself James Moore.
user
 I am very sorry to inform you that there is no reservation found under your name in our database.
assistant
Ok, not an issue. Thank you for checking.
user
Thank you for reaching us.
assistant