Booked Flight for Mom's Medical Exam

So my Mom is going for Medical Exam at St. Lukes on June 15, Wednesday. I already booked the flight for two. My sister will accompany her to Manila. Their itinerary is from Davao to Manila, a total of P5,474.56($133.96) for one way ticket on both of them. When they arrive in Manila they will stay at Hotel Soriente for couple nights while waiting for the Medical result. I am praying that there is no problem for the Physical exam so there's no delay on the process.