The Reds were knocked out of the Europa League by SC Braga 1-0 on aggregate and Dalglish admitted the failure to score cost them dearly.
"Over the two legs it was a penalty kick that decided it. That's about right. There was not much between either side," said the boss.
"They were very well organised and we knew before the game that the responsibility was on us to score a goal. Maybe if Andy Carroll's header goes in during the first half it would have been a different outcome.
"As I say, the fact the goal that decided the tie came from a penalty kick is a reflection of how tight it was between the two teams.
"You don't need to work the goalkeeper if you put it past him. But we didn't put anything past him.
"You need to be strong creatively if you are going to break down a really organised side. Or you need a bit of luck.
"We certainly didn't have much fortune over the two legs but I suppose everyone would say the same thing.
"Like every other team in the world we could use a bit more creativity but we are no different to anyone else."
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