Yeah I definately agree with the above, it's all about the conversation and getting to know the person. I personally think it says alot about a person if they come into chat and spam something such as...
[09:18:10] -RandomUsername-: any slave?
[09:20:05] -RandomUsername-: any slav???
[09:22:12] -RandomUsername-: any cam slaves here??
Or any phrases that are just blunt and asking for someone related to your interests. It just has "no effort" written all over it. Why would someone who posts a little quick message in chat put any effort into a proper training scheme. It's just a logical thing, all about consistency - start how you mean to carry out. If you get that connection and friendship it will be much easier to find out about interests and what the sub is actually looking for thus finding a better match. These things definately take time so I wouldn't worry too much just try to make friends - You never know you might meet a sub that is taken but eventually have a chance with her so don't just go out to make friends with not taken subs 