Hi.
user
Hello, how can I assist you?
assistant
Please change my reservation due to sudden change in my plan for a trip.
user
Sure, may I know your name?
assistant
Reservation was done by the name Justin Johnson.
user
Ok, please wait a moment.
assistant
Ok.
user
Sorry, there is no reservation found on your name.
assistant
Fine, thank you for the information.
user
Thank you for choosing us.
assistant