Hi.
user
Hello, how can I guide you for today?
assistant
Please change my existing reservation to new dates.
user
May I know your name?
assistant
Sure, I am Dennis Smith.
user
Please give me a minute, I will check the status of your existing reservation.
assistant
Sure, take your time.
user
Sorry, there is no reservation found under your name.
assistant
It's ok, thanks for checking.
user
Thank you for contacting us, have a nice day.
assistant