Hi Gaileee,
Interesting e-mail. This is how I would deal with it. I would e-mail the person
back and ask them for their phone number. Tell them that you prefer to talk
to them on the phone and you don't discuss your rates via e-mail. You could
also give them your number and have them call you. Don't ignore the person
as it could turn out to be a full time client. You never know

Just go for it
and see what the outcome is. Once you get them on the phone, then begin
the conversation by asking how they heard about you and what it is they
want to gain out of taking a yoga session with you. Try to get them
responding to your questions and see how much information you can first
find out about them. Once you have warmed them up, talk briefly about what
you do in a session and how a private session is very beneficial. Then last
but not least tell him how much you charge. Contact them as soon as you
can....the sooner the better. Get them while they are interested. As Harlan
would say "the porkypine is in heat."
Good Luck.
Peace
Sara