In Natural Language Interfaces to Databases systems, the text-to-SQL technique allows users to query databases by using natural language questions. Though significant progress in this area has been made recently, most parsers may fall short when they are deployed in real systems. One main reason stems from the difficulty of fully understanding the users' natural language questions. In this paper, we include human in the loop and present a novel parser-independent interactive approach (PIIA) that interacts with users using multichoice questions and can easily work with arbitrary parsers. Experiments were conducted on two cross-domain datasets, the WikiSQL and the more complex Spider, with five state-ofthe-art parsers. These demonstrated that PIIA is capable of enhancing the text-to-SQL performance with limited interaction turns by using both simulation and human evaluation. User NL question: List the creation year, name and budget of each department. Corrected NL question: List the creation year, name and budget in billions of each department. Modifier Rule: [Noun; C] → [C] (replace the token with the whole column name) 2 User NL question: What are the first names of all the different drivers in alphabetical order? Corrected NL question: What are the forename of all the different drivers in alphabetical order? Modifier Rule: [Noun; C] → [C] (detect the phrase and replace it with the whole column name) 3 User NL question: What is the type of the document named "David CV"? Corrected NL question: What is the document type code of the document whose name is "David CV"? Modifier Rule: [Verb; C] → whose [C] is (directly tell the column name of the verb token) 4 User NL question: Where is the club "Hopkins Student Enterprises" located? Corrected NL question: Where is the club "Hopkins Student Enterprises" 's location? Modifier Rule: [Verb; C] → 's [C] (directly tell the column name of the verb token, when the token is in the end of the sentence) 5 User NL question: Show the enrollment and primary_conference of the oldest college. Corrected NL question: Show the enrollment and primary_conference of the oldest founded college.