Hi. I am Dennis Johnson.
user
Hello, how may I assist you today?
assistant
I want to change an existing reservation due to sudden change in my trip. Can you help me with this?
user
Sure, we are here to help you. Please wait a moment.
assistant
Ok.
user
Thank you for your time, unfortunately no reservation found on your name.
assistant
No issue. Thank you.
user
Thank you for availing us.
assistant