Jet Airways — need a new ticket from coimbatore to kolkata or a cost of full new ticket

I am travelling alone with kids on4th may 2019 from coimbatore to kolkata flight no. 9w978 and ai766 now jet airways is cancelling the flight from their reasons and their is no other flight so i have to cancel my full ticket cost rupees 12000 jet airways is saying i can't do anything then who will suffer i want an answer that is this a way to behave with a women travelling alone with two kids by saying i can't do anything