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//See:https://docs.microsoft.com/en-us/bot-framework/nodejs/bot-builder-nodejs-dialog-manage-conversation-flow

// This is a dinner reservation bot that uses multiple dialogs to prompt users for input.
var bot = new builder.UniversalBot(connector, [
    function (session) {
        session.send("Welcome to the dinner reservation.");
        session.beginDialog('askForDateTime');
    },
    function (session, results) {
        session.dialogData.reservationDate = builder.EntityRecognizer.resolveTime([results.response]);
        session.beginDialog('askForPartySize');
    },
    function (session, results) {
        session.dialogData.partySize = results.response;
        session.beginDialog('askForReserverName');
    },
    function (session, results) {
        session.dialogData.reservationName = results.response;

        // Process request and display reservation details
        session.send("Reservation confirmed. Reservation details: <br/>Date/Time: %s <br/>Party size: %s <br/>Reservation name: %s",
            session.dialogData.reservationDate, session.dialogData.partySize, session.dialogData.reservationName);
        session.endDialog();
    }
]);

// Dialog to ask for a date and time
bot.dialog('askForDateTime', [
    function (session) {
        builder.Prompts.time(session, "Please provide a reservation date and time (e.g.: June 6th at 5pm)");
    },
    function (session, results) {
        session.endDialogWithResult(results);
    }
]);

// Dialog to ask for number of people in the party
bot.dialog('askForPartySize', [
    function (session) {
        builder.Prompts.text(session, "How many people are in your party?");
    },
    function (session, results) {
        session.endDialogWithResult(results);
    }
])

// Dialog to ask for the reservation name.
bot.dialog('askForReserverName', [
    function (session) {
        builder.Prompts.text(session, "Who's name will this reservation be under?");
    },
    function (session, results) {
        session.endDialogWithResult(results);
    }
]);