looking for someone can paraphrasing the following article:

 

The target patron for Porter is time sensitive and frequent business traveler. These customers are the individuals that prefer last minute flight changes on routes, times and fares in addition to last minute, no charge to booking options and consistent and timely, and reliable route options. This allows Porter Airlines to tailor options and services towards the convenience of the business traveler rather than low fares, no frills family travelers. This isn't saying that Porter's does not offer low fares to families, they just are secondary to their priority. This strategy has been very beneficial to them. This does not mean they do not offer the same luxurious to the family traveler market. 

 

Model of Competition from Michael Porter's Five Forces is the critical force that faces Porter Airlines. Substitutes: Porter Air must constantly vigilant of both legacy carriers and new entrants marketing and pricing strategies. Even as Porter continues to set them self apart from their competitors by using this strategy, other have might start to copy this strategy and move in on their market. If Porter doesn't keep ahead of their competition it could cause doom for them. Since, Air Canada has a larger customer base, higher profit yield, and large command over the main airport market, can utilize other strategies to compete with Porter Airlines. This needs to be a major concern for Porter's, due to Air Canada's ability to change Porter's main consumer market and push Porter out and make them another notch on their belt for running out the competition.