It's better for you to use the other italki feature for us to correct your writing,

Usually, a mobile phone is a boon for students and businessmen. The reason is very simple due to online interaction. Communication occurs from distant places too. It is possible to have one-on-one interaction between tutor and student anywhere in the world. An enormous amount of information can be gathered via internet. Using the internet also helps with booking travel, online banking, shopping and so on. However, the mobile phone is a curse for teenagers. They waste the utmost time on social media. It can lead to anxiety and depression. Taking selfies and posting online is today's trend. A study shows 2000 people are dying every year due to taking selfies in risky places like mountains, beaches, valleys and reefs. A percentage of accidents have been increased due to excess usage of cell phone while driving vehicles. More often, pedestrians’ use of mobiles has lead to severe accidents as well. I think every gadget has pros and cons, so it's vital to use it cautiously.

Hey! I am grateful to you for the corrections. Is it alright to use "booking travelling tickets" instead of "booking travel"?