I booked a flight from Boston to Ft. Myers several weeks ago and selected extra room seating row 2c and 2d; both of these seats are on the isle. Isle seating is needed due to recent knee surgery for my wife and me. I received an email informing me that my seat was changed due to changes in equipment. The plane is a 320 same as before. Thesasameh=assassigmundanereason. User's recommendation: why pay for extra leg room if Jet Blue doesn't honor your request!