Grammar: The essay has minimal grammatical errors, but some sentences are fragmented. Mentioning correct subject-verb agreement and appropriate use of tense. The essay also needs some improvement in the sentence structure. Factual correctness: The essay appears to be factually correct, but there are no sources cited to back up the given information. Writing style: The writing style is straightforward but lacks creativity. The essay uses simple language and is easy to understand. Plagiarism: There is no evidence of plagiarism in this essay. Correspondence to the topic: The essay is well relevant to the topic. It provides valuable information on the subject of airlines. Math calculations: There is no mathematical calculation involved in the essay. Terminology: The terminology used in the essay related to airlines is appropriate and accurate. Date correctness: The essay does not mention any vital dates or events that need to be checked. Page length: The essay meets the requirement of three pages.

Tips for future writing:

1. Ensure that complete sentences are used while avoiding sentence fragments.
2. Cite sources to support the provided information.
3. Use more creativity to make the essay more engaging and interesting to read.
4. Run a plagiarism check on the final work to avoid any instances of unintentional copying.
5. Check for chronological order and dates to ensure that the essay is factually accurate.
6. Use more industry-specific terminology to make the essay more in-depth and professional.

Overall, the essay provides an adequate overview of the topic of airlines, but more effort could be made to make the essay more engaging and informative. The essay has good content and structure, but it needs more attention, creativity, and improvement in the style.