Systems and methods for generating a set of custom keywords based on a media asset. The systems and methods may receive a media asset viewed by a user, receive a set of base keywords, and determine a character in the media asset. Further, the systems and methods may determine a set of custom keywords based on dialog in the media asset corresponding to the character and determine for a custom keyword, from the set of custom keywords, an equivalent base keyword from the set of base keywords. The systems and methods may determine a response to a received user request, wherein the response includes the base keyword from the set of base keywords, and generate a modified response to the user request based on the response to the user request, wherein the modified response replaces the base keyword with the custom keyword.