Elly,
Sounds like you may be on the AA flight that we will be leaving on from DFW on the 26th !
If so you should probably get advanced reservations on the puddle jumper on Maya Air
so you won't have to wait too long for the next flight to SP.
Glad to hear about your decision to make the trip! You will really enjoy the place.Largest accumulation of friendly folks you will ever meet.
Richard