GOFIRST AIRLINES - Airlines cancelled

This is with regard to my travel from Maldives to Lucknow (connecting from Mumbai )on **th September PNR E*DWKV
I have got a mail and message today stating Flight from Mumbai to Lucknow has been cancelled

I have called customer care for reschedule of my flight or any time after I reach Mumbai but they are saying there is no other flight and same cannot be done or I should go with partial refund or full refund

Now tell me where is my fault in this . People travelling abroad book everything almost a month before because of high cost and charges
First you are giving me partial refund second I need to bear and book another flight from Mumbai to Lucknow at a cost which is now showing not less than *k or even if I go for full refund entire journey will ne more than ** k which I have spend
I am travelling solo as a female and do you think
this thing is fair

I would request you to look into this matter ASAP and provide me another flight or so that I can somehow pay and book another flight

Requesting to give me partial refund of *k
so that I can book another flight of another airlines since GoFirst is not having any other flight after *:** pm on the same day
You can check if I book some other flight from Mumbai -Lucknow now it is not less than * k