Although I am 'available' up to 10pm, I much prefer to work during the day ( Don't we all? :)You will find me at my very best during normal working hours! X
There is a much greater chance of a visit the earlier you call - so I would ask that this is by 8pm for a same evening visit.
Booking by midday/early afternoon will probably mean I haven't already taken a booking for the day - so would be more than happy for you to be my date.
Remember, I never see more than 1 client per day X