Hi.
user
Hello, what help can I do for you?
assistant
I want to change my existing reservation, because of postpone of my examination, can you please help me in this?
user
Sure, may I know your good name please?
assistant
Myself Ryan Roberts here.
user
Sorry, there is no ticket booked on your name to change the reservation.
assistant
No problem.
user
Thank you for contacting us.
assistant
You are welcome.
user
Have a great day.
assistant