Found many section of times intersect (can edit), C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Globalization;

namespace Rextester
{
    public class Program
    {
        class TimeRange
        {
            public DateTime Start{get;set;} 
            public DateTime End{get;set;} 
            public string Status{get;set;}
        }
        
        public static void Main(string[] args)
        {
            //Your code goes here
            Console.WriteLine("HoaND:_");
            var provider = new CultureInfo("de-DE");
            //var d = DateTime.ParseExact("08.05.2016", "d", provider);
            //Console.WriteLine(d);
            
            /*
            *Requirement*
            Test 1:
            => input (dd.mm.yyyy):
            t1 = 08.05.2016 -> 20.05.2016
            t2 = 17.05.2016 -> 25.05.2016
            t3 = 27.05.2016 -> 28.05.2016
            => output:
            t1 = 08.05.2016 -> 17.05.2016, Status = normal
            t2 = 17.05.2016 -> 20.05.2016, Status = overlap
            t3 = 20.05.2016 -> 25.05.2016, Status = normal
            t4 = 27.05.2016 -> 28.05.2016, Status = normal
            
            Test 2:
            => input:
            t1 = 05.05.2016 -> 20.05.2016
            t2 = 07.05.2016 -> 15.05.2016
            t3 = 17.05.2016 -> 25.05.2016
            => output:
            t1 = 05.05.2016 -> 07.05.2016, Status = normal
            t2 = 07.05.2016 -> 15.05.2016, Status = overlap
            t3 = 15.05.2016 -> 17.05.2016, Status = normal
            t4 = 17.05.2016 -> 20.05.2016, Status = overlap
            t5 = 20.05.2016 -> 25.05.2016, Status = normal
            
            Test3:
            => input:
            t1 = 05.05.2016 -> 07.05.2016
            t2 = 15.05.2016 -> 20.05.2016
            t3 = 22.05.2016 -> 25.05.2016
            => output:
            t1 = 05.05.2016 -> 07.05.2016, Status = normal
            t2 = 15.05.2016 -> 20.05.2016, Status = normal
            t3 = 22.05.2016 -> 25.05.2016, Status = normal
            */
            
            var list = new List<TimeRange>{
                new TimeRange{
                    Start = DateTime.ParseExact("08.05.2016", "d", provider),
                    End = DateTime.ParseExact("20.05.2016", "d", provider),
                    Status = ""
                },
                new TimeRange{
                    Start = DateTime.ParseExact("17.05.2016", "d", provider),
                    End = DateTime.ParseExact("25.05.2016", "d", provider),
                    Status = ""
                },
                new TimeRange{
                    Start = DateTime.ParseExact("27.05.2016", "d", provider),
                    End = DateTime.ParseExact("28.05.2016", "d", provider),
                    Status = ""
                }
            };
            
            Console.WriteLine("=> Input: ");
            foreach(var item in list){
                Console.WriteLine(item.Start +" -> "+ item.End);
            }
            
            //Logic here
            //TODO: code
            //Code
        }
    }       
}

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