Odd e-mails

I've been getting a fair number of e-mails requesting information on
such things as the cost to rent a helicopter, cost to get a sport
pilot license, cost of a Light Sport Aircraft etc. They are oddly
worded leading me to believe that English is not the senders (just a
first name) native language. I assume that this is some sort of
phishing scam but what are they looking for? Just any reply so that
they know its an active e-mail account?

Mike