Schedule date by session!

Hi everyone, i have a big * problem to finish my ionic2 application. indeed, i would like to apply an methodology from an application that i very liked and then downloaded, but the schedule of date in this latter is apply to an “set of group”, like this:

 Data.json files==>

{

“schedule”: [
{
“date”: “2018-05-20”,
“groups”: [
{
“time”: “8:00 am”,
“sessions”: [
{
“name”: “Starparade Events",
“timeStart”: “8:00 am”,
“timeEnd”: “9:00 am”,
“location”: “Abidjan",
}
]
},
{
“time”: “9:00 am”,
“sessions”: [
{
“name”: “HeveaCulture Conference",
“location”: “Plateau",
“timeStart”: “9:00 am”,
“timeEnd”: “9:30 pm”,
},
{
“name”: “ trades seminar “,
“location”: “france”
“timeStart”: “9:30 am”,
“timeEnd”: “9:45 pm”,
},
{
“name”: “Accountancy Panel",
“location”: “libreville"
“timeStart”: “9:45 am”,
“timeEnd”: “10:00 pm”,
}
]
},
{
“time”: “10:00 am”,
“sessions”: [
{
“name”: “how to understand climate change",
“location”: “california, USA"
“timeStart”: “10:00 am”,
“timeEnd”: “10:15 pm”,
},
{
“name”: “Conference: The evolution of humans”,
“location”: “South africa",
“timeStart”: “10:15 am”,
“timeEnd”: “10:30 pm”,
},
{
“name”: “Conference: Artificial intelligence",
“location”: “brésil",
“timeStart”: “10:30 am”,
“timeEnd”: “3:00 pm",
}
]
},

        {
          "name": "Community Interaction",
          "location": “dublin",     
          "timeStart": "11:30 am",
          "timeEnd": “2:50 pm",
        },
        {
          "name": “how to be efficient in cars business",
          "location": “chicago",
          "timeStart": "11:30 am",
          "timeEnd": “5:00 pm",
        }
      ]
    },   
      ]
    }
  ]
}

],

schedule.html file ==>(only the content part)

{{group.time}}
{{confDate}}

{{session.name}}

{{session.timeStart}} — {{session.timeEnd}}: {{session.location}}

What i want to do, is simply apply a different date for Each session in the Schedule part as you can see in the Data.json file* , i don’t want to group date to each session !! Since i thought that it was a little problem, i was wrong, i try many times to fix this issue but i failed until now, So my last resort in the great communities that’s here. :checkered_flag:I NEED YOUR HELP GUYS :checkered_flag:.

PLEASE