Taxi price from Punta Cana airport to La Romana?

What is the cost of a taxi from Punta Cana airport to La Romana?
How long is the trip? (About 1,5 hours?)
Do the taxis that are in PUnta Cana airport offer this transfer or is it better to book in advance?
Thank you.

I have no idea for the price, but La Romana has an international Airport, second the trip takes about an hour and there are always taxis waiting for clients at the Punta Cana Airport (They have even a sign outside stating all the fares, but you may also consult the assistants at the Airport. (Prices go for the trip, no surcharge for more persons ore luggage!) I think, there might be a bus going from Punta Cana to La Roman (very Cheap - if there is = Metro, Caribe Tours are the names) See u here!