Depending on when guests ask you to change the details of a trip, the terms of the deal differs.
1. If you are asked before a tour
If your guests say that they want to change the details of your trip by the previous day of the tour, check whether the price and the details will change dramatically. As long as you change just its order or little things like this, it may not be necessary to rebook a new tour.
If the details change greatly including its fee, cancel the tour once and let your guests book a new one again. At this time, canceling from guests may cost a commission fee. Cancel it from the guide's side and send an offer again, then let your guest book and settle the payment.
2. If you are asked on a tour
If your guests say that they want to change the details of your trip on the day of the tour, guests cannot rebook a new tour on the same day because guides cannot send the offer of the tour held on the same day. If you change the details of the trip on the appointed day, please do it while consulting your guests. Make sure about the extra fees and these kinds of things as well.