To me, the exchange looks a bit gamey...

If I breakdown a bit your messages :

• I am not a fan of the opener but it depends on the profile you have (and the prompts), so ok for this one
• Your second message is ok (some girls answer with a winky face, some others don't answer at all.... and it's up to us to know what type of girls we talk with, but it's not easy), this girl is a type of girl that does not answer to those types of messages... (I don't know if sassy is the word to describe her)
• If after 2 days or more, I see no answer from a girl because I tried to be a bit "flirty", I would have reengaged her but I would stay "grounded" (no gamey text) and straight to my goal (the date) on my next messages
• Not a fan of a "Yo" text to reengage a girl (neither does she lol, you send a "Yo" to your friends, your brothers maybe, not a girl you barely know and want to date... even me I don't want to answer when my friends just send me a "Yo") I prefer send a message to make the girl talk (like a "how is your day going")
• Your following message is good (The Alex line), I have a high % of answer after that line lol.
• In your following message, you asked two questions (not a fan of that, it's like you want to throw all your game because you are not sure if she will answer after your message... and she only answered to one of your 2 questions, that's another reason about why I don't like)
  I don't like the rest of the interaction (not because it's bad, but based on her few messages, I would directly speak about a date)

My advice : Next time (with another girl), try to speak about the date as soon as you can (by placing the word "date" early in the convo)

For this interaction, you can say : "I like you already. How is your day going"

untasty?