what is problem here JavaScript

Question

function main() {
//take flight number and its status
var flightNumber = readLine();
var flightStatus = readLine();

var flight1 = new Flight("SBI 3205", "delayed");
var flight2 = new Flight("NGT 786", "ontime");
var flight3 = new Flight("NMF 179", "canceled");

//assign a flight object to flight1 variable

//output
console.log('The flight ' + flight1.number + ' is ' + flight1.status);
console.log('The flight ' + flight2.number + ' is ' + flight2.status);
console.log('The flight ' + flight3.number + ' is ' + flight3.status);
}

function Flight(flightNumber, status) {
//fix the constructor
this.number = flightNumber;
this.status = status;
};

test case 1 is getting passed after removing this two lines
console.log('The flight ' + flight2.number + ' is ' + flight2.status);
console.log('The flight ' + flight3.number + ' is ' + flight3.status);

but when i add this two lines all test fails output:
The flight SBI 3205 is delayed
The flight NGT 786 is ontime
The flight NMF 179 is canceled

Answer 1

Alert(1);
change some line and now its correct,
Just look this..

function main() {
var flightNumber = readLine();
var flightStatus = readLine();
var flight1 = new Flight(flightNumber,flightStatus);
console.log('The flight ' + flight1.number + ' is ' + flight1.status);
}
function Flight(flightNumber, status) {
this.number = flightNumber;
this.status = status;
};

Answer 2

can u share the link of the question or code challenge?