Hello. I am Samuel Lee.
Hello, how can I guide you for today?
I am planning to change an existing reservation, due to health issue. Can you please change my reservation?
I will help you with that. Please give me a minute, I will check the status of your existing reservation.
Sure.
Sorry, there is no reservation found under your name in our database.
That's fine, thank you for your service.
Thank you for contacting us, have a nice day.