I asked a girl out this thursday to get dinner right after class and then get drunk in my dorm (we both have no class friday) She said "Ya prolly. I may have homework or something"

To me it reads "I dont have much to do actually but I am putting your cock on hold to make myself feel important and I will most likely reject you but I am too nice to say no and need an ego boost so for now 'maybe'"

How do I follow up and ask beforehand if she will do so? I am thinking of trying to schedule this other girl on the same day and time just in case (if possible)

Should I just text her in the morning and say "Hey are you still up for dinner after class?"

I am not interested in the answer for this scenario. I am interested in the answer for future scenarios as well