Spikes!
When do you want to join?
It takes 3-6 weeks to get the Golden Call. Then they usually offer you a course 4-8 weeks after the Call.
If you need a later date, you can discuss it with them on the phone. I'm sure it shouldn't be a problem as there are many training courses this year.
So, normally people join Emirates 3-4 months after the Assessment Day. Is it too early for you?!