Ok so here was our initial itinerary:
Sept 27 arrive in Paris (spend 28th, 29th in Paris)
September 30 morning train from Paris to Interlaken (already have this booked)-we will be going to Gimmelwald and staying there on the 1st and 2nd (at least that was the plan)
October 2nd night train from Interlaken to Florence (I had booked this as well and just received an email from the site saying that the overnight train is already full, so they suggest an alternate intinerary that will take up an entire day and cost us twice as much)
October 3rd and 4th-Florence
October 5th-fly home (leaving out of Florence airport)
I would appreciate any advice on figuring out an alternate train to get from Interlaken to Florence. I am bummed because what I had booked was $140 in USD for 2 people and I can't find any alternatives that don't cost more than $300 :(