Don’t pursue him outright.
The danger of outright pursuing a guy, especially when online dating, is in the laziness that it can cause in a guy. As a result, you may find yourself putting out all of the effort to make things happen. You shouldn’t put yourself in that position.
Instead, contact him and let him know what your availability is. This puts the ball in his court in terms of meeting up.
If he chooses not to take advantage of this and organize a time that he can meet up with you, it is best to let him go and move on.