L.F.
Hello
The advice the other mom gave was great- 'just a little' or 'for 2 songs' so the end point is recognizable. I nursed both mine until 3 and found with my two (now 5 and 3) that transitioning was easiest around a big event. Going from on demand nursing to only morning, before nap and bed was around a vacation (or being gone- like you were) and full weaning was at their birthday. I just told them- months out- that 3 year olds don't nurse and the morning of their party was the last time. They both asked only once after, no fussing. If you don't want to wait until she is 3, then come up with some event and mark it like a party or ritual, maybe even a little gift for her, something tangible.
Good luck!
L.