How to write an email to request a dataset to a professor I'm interested in a dataset used in a scientific article, but I am not able to find this dataset on the Internet, I guess it is because the dataset was provided by NSTAR (an energy company) that no longer exists (it has merged with Eversource).

I have thought of requesting it to the corresponding author of the article, but I have never sent anything to a MIT visitant professor (female, just for the record) and I have never called a teacher of mine by its title. I think that there is not such a strict culture in Spain of calling everyone by its title. Can anyone help me in writing the letter? Will it bother her if I send such request? How should I start? What should I say about myself? How should I end the letter?
Professors are just normal humans, even at MIT. Be friendly and brief. How about this:

Subject:


  Request for dataset used in [article name]


Body:


  Dear Professor [last name],
  
  on page [page number] of the article "[article name]" you are referring to a dataset consisting of [elements of dataset]. I am currently working on _____ and would like to ask if you could send me this dataset for further analysis as it would help me [benefit for you, e.g. "verify your results"].
  
  Thank you,
  
  [your first name] [your last name]