Hello. Charles Evans here.
user
Hello, how can I aid you for today Charles Evans?
assistant
I want to change my existing reservation, as my exams got postponed. Can you please help me with it?
user
I am here to help you about that.
assistant
Thank you.
user
Sorry to say this Charles Evans, there is no active reservation with your name in our booking list to change your reservation.
assistant
Ok, not a problem. Thanks for the information.
user
You are welcome, thank you for reaching us.
assistant