In case due to any reason flight disruption occurs, your flight will get rebooked on its own maximum within an hour. If the rebooked flight doesn’t suit you, you can do it yourself through the official website or mobile app.
Lufthansa airlines Flight Check-In FAQ's
1. Can we reserve our seats according to how we want them? +
You can always have your seat reservation done as per your choice. You just have to make sure the reservation is done before 52 hours of departure time.
2. What about rebooking if the flight is suddenly disrupted? +