Honda — due to non availability of parts of honda brv

I had given my honda brv gj06kd 2713 for repairing due to water going in side of engine at vadodara gujarat for service and repairing.
From gopinath service centre informed that parts are not available in his centre and order to depot at delhi. They will give my var after receiving spare from delhi and it will take 10-15 days.
After receiving parts they will give my car after repairing within week time.
Me and my family make trip plan for rajsthan by same car car after receiving.
Now today i got message that car will not be ready, it will take some more days.
Please suggest how i can go to rajsthan with my family from 2nd oct 20.
There will 3 days leave for trip program.
Due to non availability of spare my all progrem going spoil.