Hi.
user
Hello. How can I assist you?
assistant
Can you please change my existing reservation? Because I need to change my food court to other place.
user
Ok, please wait I will revert you.
assistant
Ok.
user
 But to proceed further may I know your name?
assistant
I am Anna King.
user
 OK, please wait.
assistant
Sure.
user
 Sorry, no reservation was found on your name.
assistant
Ok, Thank you.
user
 Thank you for availing us.
assistant