Airline has made two changes to original reservation. The first was able to be changed without disruption to our plans. The second time change however, makes it impossible to make connecting flight. No alternative flight available to make connection. Resolution would require adding $628 to our reservation for only one segment (2 people) which is not possible given our budget. JetBlue was not able to satisfy our request for resolution and we could not absorb the addbeeitioanal cost. User's recommendation: fly southwest, they are more accommodating and able to resolve issues related to scheduling changes without addition additional costs.