JavaScript

Promises

const checkFlightAvailability = () => new Promise((resolve, reject) =>
  setTimeout(() => true ? resolve("Flight available") : reject("Flight not available"), 2000)
);

const reserveSeat = () => new Promise((resolve, reject) =>
  setTimeout(() => true ? resolve("Seat reserved") : reject("Seat reservation failed"), 3000)
);

const processPayment = () => new Promise((resolve, reject) =>
  setTimeout(() => false ? resolve("Payment successful") : reject("Payment failed"), 1000)
);

const finalSuccessMessage = "Flight booking successful!"
const completionMessage = "Email process complete.";

// Write your code below this