Hi Diego,
If you have already been out on several dates and she is still not initiating text conversations, it may be best to stop initiating texts and let her reach out to you.
Even if it takes more than a couple of days for this to happen, it may be best for you to wait it out until she does.
Upon waiting, if it takes her more than a week to initiate a text, you may have to accept the very strong likelihood that she is just not that into you.