Hello.
user
Hello. How may I assist you today?
assistant
I want to change my existing reservation due to sudden postpone of my trip dates. Can you help me with that?
user
Sure, I will try to help you but I need your name to proceed further?
assistant
Thank you. Kevin Mitchell here.
user
Sorry to tell you that, there is no active reservation found with your name in our database to change it.
assistant
Ok, no problem. Thank you for your assistance.
user
My pleasure.
assistant