Hello.
user
Hello, how can I guide you for today?
assistant
I am Sarah Lee. I am planning to change my change an existing reservation, due to health issue. Can you please change my reservation?
user
Please give me a minute, I will find your existing reservation.
assistant
Sure.
user
Sorry, there is no reservation found under your name.
assistant
That's fine. Thank you for your help.
user
Thank you for contacting us, have a nice day.
assistant