Thank you for your feedback in regards to us being able to provide our guests with more information about their tour. Our system was designed with the utmost flexibility in mind, and we are disappointed that our online booking service did not meet your full expectations on this occasion. We do see that this Private Transfer - Paris (CDG) to Paris City Centre service is only for transport from CDG (Charles de Gaulle Airport). This is the reason why there is no drop down menu for pick up sites, since the pick-up is only from one location. The supplier requires that you advise the time your flight is scheduled to arrive in order to properly arrange your pick up. These details can be added in the special requirements during booking, or you can call the supplier at the number provided on your confirmation voucher. The drop off, however, can be at various hotels in the Paris City Centre. I hope this information is helpful to you. Your feedback is very important to us, and we will definitely use this to make improvements to how information explained on our Viator site. We hope that your upcoming trip to Paris is both a pleasant and memorable one, and we hope to be of excellent service to you in the future.