Complex sentence: After listening to Daphne feeling sad about the fact that her father won't be able to give her away at her wedding, Niles has a brainwave-he asks Daphne to take her mother to Hawaii to try and cheer her up.
Split into simpler sentences: After listening to Daphne feeling sad about the fact that her father will not be able to give her away at her wedding, Niles has a brainwave. He asks Daphne to take her mother to Hawaii to try and cheer her up.