I was scheduled to fly from Madrid to Houston with a connection in Frankfurt, on Lufthansa, July 29,2023. The was a shortage of crew on deck and the flight from Madrid had a late departure, so I missed the connecting flight to Houston. The rebooked my to return flight to Houston for July 31 (two days later). They did not offer hotel vouchers and would not take accountability for the crew shortage. I had to go to three youth hostels before I found a room. I have flown around the globe at least ten times and never had an experience like this with no hotel voucher or compensation. I have contacted their online form several times with no success. I do not recommend Lufthansa. I would give them a zero rating if possible.