Hello.
user
Hello. How can I assist you?
assistant
I have to change my existing reservation, as I am not feeling good. So, will you help me in this for changing the reservation?
user
Sure, I will help you. May I know your name?
assistant
I am Christine Hall.
user
Unfortunately, There is no reservation found with your name.
assistant
Thank you for helping me.
user
Thanks for choosing us.
assistant