Hi. I would like to make an appointment to see Dr. Johnson today. I have had a cough and sore throat for two days. 
Could I have your name, please?
sure, it is Alexis
Unfortunately Dr. Johnson has no appointment available at 9 pm.
anything at 10?
Alright, Dr. Johnson is available at 11 pm. Can I book the appointment for you?
Dr. Johnson is a pretty popular doctor! I wonder if it is because he is older, or maybe because he is very attractive?
I am sorry, I don't quite understand what you mean. I am only able to help you book an appointment with your doctor.
I mean I always kind of wondered why he is so busy, you know?
Alright, Dr. Johnson is available at 11 pm. Can I book the appointment for you?
Oh yes please book that. Also I just remembered that my son Mark needs a vaccine. Please schedule an appointment for him for the same time. 
Great, your appointment with Dr. Johnson is booked for you!
And Mark's appointment?
Mark's appointment has also been booked with Dr. Johnson!