Can anyone please recommend a nice dinner cruise on the Seine? I've heard of people taking them but I would like to find one where the food is good and it's not just a tourist trap. How much do they cost, and where do I make reservations? I will be there early May, and I have been to Paris 3 times before but this is something I have never done and I'm looking to try new things this time around. Any other recommendations would be great!