sentence: Samantha's recent health has been a very big problem unlike Monica's because 
complete: Samantha was diagnosed with cancer.

sentence: Jeffrey really hated eating jalepenos unlike William because 
complete: William was able to eat spicy food.

sentence: Airbnb was ideal for Amy but Cynthia liked staying in hotel better than homes. 
complete:
Cynthia booked a room in a downtown hotel for their vacation.