GoAir — Cancellation of flight in sept 2017 whose booking was made in feb 2017

Address:	Kolkata, West Bengal, 700078
Website:	book.goair.in

I have booked tickets on flight g8-261 (Booking reference xzj8n7) on 17th feb 2017 for kolkata to lucknow for me and my family members. The tickets were confirmed. Today i received a message and a voice call stating the flight has been cancelled. On calling up the customer care numbers repeatedly,, there was this executive named amit who told me he would see the possibility of reallocation, after putting me on hold for a time, he said casually there are no flights on that day and further there are no flights in september 2017 from kolkata to lucknow, please book a flight on another airlines, we will return the full booking amount. On asking to speak to the supervisor, i was put on hold for 20 minutes without the supervisor coming to speak.
I am going for a holiday and all bookings have been made for hotels.in such case booking in another airline would be very costly at this time. Does goair take into consideration the financial loss customers have to go through because of the cancellation of flights? I am amazed that they are not even considering accommodating customers through other routes which can help them reach the destination.
I am totally at a loss at the shoddy manner of goair in which they are dealing the customers, disgusted to say the least about the integrity of the company.