Read the following context and answer the question.
Context: Due to a local party in my neighbourhood I was only able to sleep 4hrs . So the early get up at 4 hitted quiet hard . Leaving a bit later than scheduled and a miscalculated train departure time at my city made me just miss my train . But I still got to the Airport around 8AM .
Question: What may be the reason for them having to wake up early ?
Answer:


They had to catch a flight at the airport .