Hi.
user
Hello. How may I assist you?
assistant
I would like to change my flight reservation as I am sick, could you please help me?
user
Sure, I am here to help you out.
assistant
Thank you.
user
May I know your name please?
assistant
I am Mark Davis.
user
Mark Davis, we haven't found any reservation under your name in our database with your preferences.
assistant
No problem, thank you for checking.
user
Thank you for choosing us.
assistant