In hitbtc, you can. Once you ordered to send the money and confirmed it you can always cancel it but the fee will be reduced. So if your money is. 05 btc and the fee is .0015 btc then when you cancel it, the funds you can get is only. 0485 btc.
It can be done by the exchanges only as they will do by their own pocket but in blockchain bitcoin transaction cannot be cancelled once it is confirmed by the blockchain. Until the transaction is not confirmed or included in the block it will get cancelled for example if you have set very low fee then your transaction will get cancelled automatically after some time as no miner will included it in their block.