Only you don't say that in your letter. Always research the recipient of your query letter. The query letter is a written pitch. Query letters are always a sales tool. Query letters are usually written by the writer to a producer or executive at a production company or to a literary agent.
Queries are single-spaced, professional business letters.
One page in length only. Avoid stationery that is jokey, clever, or precious. Always send the letter to a person not to a company. The opening paragraph should grab the reader's attention. The second paragraph should give the recipient a reason why they should read your script.