When you looking to score, you should always talk with a couple of women at once.
Most women are not spontaneous and will not respond your tinder message or whatsup right away, only if she is desperate. Sometimes it can take a day or two before she just says hi leaving you dry and dateless.
To solve this problem you can try texting a girl and if she doesnt reply in 10-15 minutes text another girl and then another girl. Most of the time with this method you will be in situations that you have more then one girl responding and want to set a date but this time you are in control! and this is what you need. Just choose the girl you really like and have the best flow with and go with her and softly reject all the others. I say softly because you want to leave this orputunity open for later if the current date wont evolve into something worth while.