Hi, myself John Young.
user
Hello John, how can I assist you today?
assistant
I would like to change my reservation as I am unwell, could you please do that for me?
user
Sure, I am here to help you. Please wait for a while.
assistant
Sure.
user
Sorry Young, I have not found a reservation by your name in our database.
assistant
No problem, thank you for checking.
user
It's my pleasure, have a nice day.
assistant