You don't have to do anything outside of your owner's manual unless wear or unusually harsh conditions warrant. Bring your car to a trustworthy mechanic and have them inspect everything the dealer recommends. It is hard to believe that you need brake pads and brake system flush after only 34 k miles. You don't need to do anything to your mass air flow sensor unless you have a related check engine light showing with a stored code for the MAF sensor. Many parts stores will download the codes free for you and you can investigate what they mean as it suits you. Do not trust the dealer to save you money. They will recommend maintenance with a high level of caution - meaning they will charge you for anything they can think of, whether you need it or not.
I don't understand what "throttle fluid" is. Maybe they mean transmission fluid which is not in your list of maintenance items. Unless you live in the mountains, I don't believe that you would need that either.