Hi @Jyoti_Prakash_Behera, Thanks for the clarification. You can validate slots directly in the flow. Here is a detailed guide on how to do it: Assistant Memory (Slots) | Rasa Documentation.
You can also suppress interruptions to create a loop to fill the slot by setting force_slot_filling: true, here is the guide: Business Logic with Flows | Rasa Documentation
Hope this answers your question.