In reply to rajmuk01:
An option is just to layer the sequence, you can have a higher level sequence that controls the sequence on interface B after sequence A has been randomized and started. This is pretty much the basis for the usage of a virtual sequence. some useful link: https://www.chipverify.com/uvm/virtual-sequence
You can do the same thing within the test without creating a virtual sequence but it will be less encapsulated and reusable.
Have fun! Cheers,
Stef