Hi jesliwoo,
To answer your immediate questions: NO - Schools will not see that you Cancelled your 2nd attempt nor that you did not actually take your 3rd attempt (in addition, since you didn't actually show up for that attempt, it also will NOT count towards your 8-attempt lifetime limit and would not impact how you schedule a 4th attempt).
It's worth noting that a 730/Q49 is already an OUTSTANDING Score - and with it, you can comfortably apply to any Business Schools that interest you. By extension, a retest is probably not necessary. When are you planning to apply to Business School and what Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich