Asked out really cute girl at my work

What up seddit, I have been studying your guys material for a good amount of time now and have found that it has helped my game in many aspects. Anyway, I have been flirting with this pretty cute girl at my work for a few months now and she knows I'm interested in her. I asked her out today via text saying we should go get sushi and she said she was busy today but would want to another time. The text asking her out went like this:

me: Hey do you like sushi? :)

Her: cali rolls lol

me: well im free tonight, we should go get some :)

her: i cant tonight, but we can some other time :)

me: for sure sounds good

me: :) forgot my smiley face

her: lol

My question is this, I don't know if this is a test just to see how eager I am, or if she just wants me to just ask her what days she is a available. I feel like if she REALLY wanted to go out that she would have let me know what days she was available without me asking. Help?