Hi I'm Alexis and I want to schedule a viewing at one on center apartments for Friday 6pm
Have you already paid the application fee for the apartment?
I can't remember
Would you like to add a message for the letting agency?
No Please 
I am sorry, but there is no viewing available at your preferred time.
4pm
Great, there is still a viewing available at that time. Would you like me to book it for you?
Yes
Your apartment viewing has been successfuly scheduled. Please bring Passport and SCHUFA certificate with you.
Oh wow thanks
Is there anything else that I can do for you?
No goodbye
Thank you and goodbye.