How to access specific nodes by filtering by a parameter without having to use a loop

Summary:

Access specific information from a JSON data collection

Content (required):

Hi experts,

{
  "people":[
   {
     "Name":"Oliver James",
     "Age":"29"
   },
   {
     "Name":"Jack John",
     "Age":"32"
   },
   {
     "Name":"Harry Robert",
     "Age":"25"
   }
  ]
}

Is there a way to access "Jack John" node without having to iterate through the entire data collection?

I tried the following without success:

/nssrcmpr:execute/nssrcdfl:request-wrapper/nssrcdfl:people/nssrcdfl:Name = 'Jack John'

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