take reference number from above
Sure, the booking reference number for your wife's booking is SJ817-3800-123457.
Now, I'll need to know the reason for cancellation. Is it due to a change in travel plans, a personal emergency, or any other reason? This information will help me to determine the cancellation charges and process the refund, if applicable.
Please let me know the reason for cancellation, and I'll be happy to assist you further.