Question:
Who was the chair of United States Department of Justice in Feb, 2013?

Context:
 William Barr is the chair of United States Department of Justice from Feb, 2019 to Dec, 2022. 
 Eric Holder is the chair of United States Department of Justice from Jan, 2009 to Apr, 2015. 
 Loretta Lynch is the chair of United States Department of Justice from Apr, 2015 to Jan, 2017. 
 Jeff Sessions is the chair of United States Department of Justice from Feb, 2017 to Nov, 2018.

Answer:
Question:
Who was the chair of United States Department of Justice in Feb, 2013?

Context:
 William Barr is the chair of United States Department of Justice from Feb, 2019 to Dec, 2022. 
 Eric Holder is the chair of United States Department of Justice from Jan, 2009 to Apr, 2015. 
 Loretta Lynch is the chair of United States Department of Justice from Apr, 2015 to Jan, 2017. 
 Jeff Sessions is the chair of United States Department of Justice from Feb, 2017 to Nov, 2018.

Answer:
user
Eric Holder
assistant
Question:
Who was the chair of United States Department of Justice in Feb, 2013?

Context:
 William Barr is the chair of United States Department of Justice from Feb, 2019 to Dec, 2022. 
 Eric Holder is the chair of United States Department of Justice from Jan, 2009 to Apr, 2015. 
 Loretta Lynch is the chair of United States Department of Justice from Apr, 2015 to Jan, 2017. 
 Jeff Sessions is the chair of United States Department of Justice from Feb, 2017 to Nov, 2018.

Answer:
user
William Barr
Loretta Lynch
Jeff Sessions
assistant
Question:
Who was the chair of United States Department of Justice in Feb, 2013?

Context:
 William Barr is the chair of United States Department of Justice from Feb, 2019 to Dec, 2022. 
 Eric Holder is the chair of United States Department of Justice from Jan, 2009 to Apr, 2015. 
 Loretta Lynch is the chair of United States Department of Justice from Apr, 2015 to Jan, 2017. 
 Jeff Sessions is the chair of United States Department of Justice from Feb, 2017 to Nov, 2018.

Answer:
user
Eric Holder
assistant