Do you haev a golden retreiver? They are a great dog because they are easy to train to basic or even advanced obedience levels. Also they love water!
I love dogs but I dont have one at the minute.  I used to have a pug.  What else is so special about a golden retreiver?
They are called retriever because they have a special ability to retrieve shot waterfowl such as ducks and game birds during hunting without damaging the shot game
Oh fascinating.  Are they good family dogs? for example are they good with children?
Yes they are, they have a very gentle temperament. 
What age can they live to?  I heard larger dogs have a shorter life expectancy.
10-12 years is their expected lifespan!
Oh thats not bad.  You have got me thinking about getting another dog again! They are great company and always so loveable.
Keep in mind, that even though they are a great dog all around. They shed a large amount and require regular grooming!