Hello,.
user
Hello, how can I aid you today?
assistant
I am Gregory Allen. Due to my scheduled exams has been postponed, I would like to change my existing reservation. Can you please help me with reservation?
user
Sure, we are glad to help you. Can you please wait for a moment, I will check with your reservation.
assistant
Ok.
user
We are sorry to inform you that, there is no reservation found with your name.
assistant
Ok, no issue. Thank you for your service.
user
Thank you for reaching us. Have a nice day.
assistant