she is going with me in nainital
Great, I understand. In that case, I can cancel the booking for your wife's ticket, and you can book a new ticket for her on the same flight as you.
To cancel the booking, I'll need to know the booking reference number, which is SJ817-3800-123457.
Once the booking is cancelled, I can help you book a new ticket for your wife on the same flight as you. Please provide me with her full name, email address, and phone number, and I'll take care of the booking process.
Additionally, please let me know if you'd like to book a seat for your wife on the same flight as you, or if you'd like to book a separate flight for her.
Please note that cancellation charges may apply, and the amount will depend on the airline's policy and the time of cancellation. If there's any refund due, it will be processed after deducting the cancellation charges.