using System;

public class Program

{

    public static void Main()

    {

        double premium = 10.0;

double refundAmount = 100.0;

​

RefundStatus status = GetRefundStatus(premium, refundAmount);

​

Console.WriteLine($"Booking is: {status}");

    }

    public static RefundStatus GetRefundStatus(double premium, double refundAmount)

{

    const double Tolerance = 0.0001; // To handle floating point precision issues

​

    if (refundAmount <= 0)

    {

        return RefundStatus.NonRefundable;

    }

    else if (Math.Abs(refundAmount - premium) < Tolerance)

    {

        return RefundStatus.Refundable;

    }

    else if (refundAmount > 0 && refundAmount < premium)

    {

        return RefundStatus.PartiallyRefundable;

    }

​

    // Optional: Handle unexpected cases

    throw new InvalidOperationException("Invalid refund amount.");

}

}

public enum RefundStatus

{

    NonRefundable,

    PartiallyRefundable,

    Refundable

}

​

​