how to use mutliple service paths in AWS EKS Ingress - kubectl

Question

I deployed all my resources in Amazon EKS Cluster, now i want to access each services using ingress.i have 3 micro-services.when i added only one service in ingress yaml file it is working please find that code below.
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: my-ingress
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: dummy.us-east-2.elb.amazonaws.com
http:
paths:
- path: /
backend:
serviceName: user-api-service
servicePort: 80
the above code is working for me and this i changed the ingress file to support multiple paths. the changed code is below
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: my-ingress
annotations:
nginx.ingress.kubernetes.io/use-regex: "true"
nginx.ingress.kubernetes.io/rewrite-target: "/$2"
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: dummy.elb.amazonaws.com
http:
paths:
- path: /user(/|$)(.*)
backend:
serviceName: user-api-service
servicePort: 80
after this i try to access the service using the below link in postman
http://dummy.us-east-2.elb.amazonaws.com/user/api/user/register
but the postman throwing the error 404
can anyone please help me with this issue? please ask if you need more informations