If I may offer a suggestion, I would not put any type of reservation (car, hotel, etc.) on a debit card. I would only use a credit card. I work at a credit union(and I have to process disputes for debit cards) and unless your debit card is tied to a credit card, I would not use it for this purpose. If you have a problem with the reservation or the rental and have to cancel it, and they charge your card for some reason, you are tying up the funds in your checking account, and there could be delays in getting the funds credited back to your account. On the other hand, if you use a credit card and have a problem, and need to file a dispute, those funds are not charged interest while in dispute(and you're not tying up your cash flow). I've seen too many people use their debit cards for hotel and car reservations, and have a fit when they cancel or have a problem, and the funds are not immediately reimbursed to their checking accounts (they may get a credit adjustment, but the funds are always delayed in posting-up to 3 to 5 business days), and they end up bouncing checks, etc, because the funds they thought were there aren't. It gets even worse if you are in dispute, and your own cash is tied up for as much as 30-60 days, especially since there can be significant dollar amounts when you are talking about car rentals, hotels, etc. I personally, from experience, would only use a credit card for this type of transaction. You may not have a problem using your debit card, but that's a big risk you're taking. That's just my opinion (based on my professional experience).
Sheri