I want to book a rental car with Ecovia at Bologna Airport. To be sure to find it as soon as I arrive, I'd like to book it for 30' before the flight arrives, which often lands a bit earlier than the official timing. I can find a good deal at that time but the form does not recognize the flight, probably because the time is earlier than its nominal landing hour. On the other hand, if I book 30' after the car I could select before is not anymore available. What is the problem if I book a car and I pick it up 30' later or even a return it some hours before? I always prefer to book a rental car for a longer period than needed to be sure not to pay extra fee for being late. Can I proceed booking it 30' before the flight arrival?