Hello, myself Charles Roberts.
Hello, how can I guide you for today?
I want to change my departure day in my existing reservation, could you mind help me in changing?
Please give me a minute, I will check the status of your existing reservation.
Sure, take your time.
Sorry, there is no reservation found under your name in our database.
It's ok, thank you for the information.
Thank you for contacting us, have a nice day.