No confirm ticket are available for MAY 19.
My Advice will be book waiting list ticket in Padatik Express.
Book ticket in PURI KYQ EXPRES Train No: 15643 from HWH to NJP as a back up...
PURI KYQ EXPRES ticket's are still available...
If...
more... your ticket in Padatik Express gets confirmed then cancel ticket for PURI KYQ EXPRES/15643.
Or go for TATKAL booking...