That is a long conversation for day game.
Did you instant date this girl? Take her to a coffee shop or a park at least? Get her sitting down with you? Escalate on her physically some?
I'm guessing "no" from the sound of it?
Actions speak louder than words, and if all you do is stand around talking for 30 minutes not doing anything, the subcommunication to the girl is, "I'm just a harmless, platonic sort of guy."
If you're going to talk to her longer than 5 or maybe
10 minutes in day game, I would strongly suggest you instant date her to not just be the harmless Chatty Cathy guy.
The follow-up texting conversation was also pretty "harmless guy", asking how her day was at work (do you actually care how her day was at work?)... the line about hoping her day will be better now that she's spoken with you, that looks like a @Skills
technique you are trying to execute, but it is not being executed properly. When you want to do these sorts of cheesy cute flirty lines with girls the vibe has to already be there (i.e., a flirtatious vibe); I'm not getting the impression it is in your interactions though.
I know you've been getting a lot of help from Skills, and it seems like are trying to model your approach off his. But you've got to look at Skills's vibe with girls -- he is being very flirtatious with them, there is this constant sense of sexuality with him / between the girl, etc. If that is lacking, then just trying to add in the words he says as a sort of copy + paste verbal technique will not work. You've got to get the attitude right.
It's also possible that you think you are coming across more flirtatious than you actually are.
This is actually pretty typically in a lot of newer guys... they think they're being super flirty but to any outside observer (as well as to the girl) it just seems like normal platonic interaction to them.
Again -- a lot of this is nonverbal/actions as well. Even if you are saying all the right stuff, if you are not DOING anything, then you are letting those escalation windows slip by, and you are telling the girl you are not a 'dangerous', sexual man... just a safe one who will stand around just talking to her not doing anything to her.