JFK --> 필라델피아 무료셔틀

I  will depart from Incheon airport for JFK airport on 24 April  by OZ 222 flight.
but I want to use  your free shuttle to go to Philadelphia on 2 May.
Are you available for '24 April arrival ticket' ?
 it means... when I will use your free shuttle (JFK --> Phila) on 2 MAy, could I use the arrival ticket?

Please, let me know ASAP :D