Hi, Kevin Edwards.
user
Hello, how may I abet you?
assistant
I want to change my existing reservation as my exam got rescheduled. Please go with booking.
user
Sure, please wait a minute.
assistant
Ok.
user
Sorry to inform you that there is no reservation matches with given name in our database.
assistant
OK. no problem. Thank you.
user
Thank you for opting us.
assistant