I'm based in London and I'm never booked up ahead(3 years of cc). Today is Monday and Next week I have 3 jobs booked in, by Thursday-Friday I will get another 2-3 jobs booked in and then the same week I will book a few more jobs in for the same week. I very rarely get asked for dates in advance, everybody wants it, Tomorrow or in the next few days. I get a few phone calls per month for, can you come today and I'm never available to do them or if I am I book them in at silly O' clock and throw a big number at them, worked a few times....