private static void AddBookingUI()
{
Console.WriteLine("Bookings");
var year = GetIntFromOutput("Please enter year: ");
var day = GetIntFromOutput("Please enter day: ");
var month = GetIntFromOutput("Please enter month: ");
var hourStart = GetIntFromOutput("Please enter start time: ");
var hourEnd = GetIntFromOutput("Please enter end time: ");
var dentists = fileHandler.GetDentists();
Console.WriteLine("Please enter your dentist number");
var dentistID = GetDentistID(dentists);
var startTime = new DateTime(year, month, day, hourStart, 0, 0);
var endTime = new DateTime(year, month, day, hourEnd, 0, 0);
var timeSlot = new MOCKTimeSlot(startTime, endTime, dentistID);
fileHandler.AddNewTimeSlot(timeSlot);
}