Basically I want to do soft assertion in my test case.

iirc that is not the expected use case for using an assertion. You may be able to circumvent by adding some type of conditional prior to the assertion, but I think the better question is why is the test failing intermittently? Can you provide a screenshot or video of the error you are receiving?

I can explain you my scenario. So basically, in my test case I have two assertion "expect" and if first "expect" fails then it stop my test case and do not execute second assertion. I want all assertion to get execute. Assertion means validation that we do from method "expect" from chai library.