Personalised response generation enables generating human-like responses by means of assigning the generator a social identity. However, pragmatics theory suggests that human beings adjust the way of speaking based on not only who they are but also whom they are talking to. In other words, when modelling personalised dialogues, it might be favourable if we also take the listeners social identity into consideration. To validate this idea, we use gender as a typical example of a social variable to investigate how the listeners identity influences the language used in Chinese dialogues on social media. Also, we build personalised generators. The experiment results demonstrate that the listeners identity indeed matters in the language use of responses and that the response generator can capture such differences in language use. More interestingly, by additionally modelling the listeners identity, the personalised response generator performs better in its own identity.
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