Final answer:
The use of allusion to Audrey Hepburn in literature can serve to establish tone, create familiarity, or convey sophistication, but without the full textual context, the specific purpose in the given lines is uncertain.
Step-by-step explanation:
In literature, the use of allusion to a well-known figure such as Audrey Hepburn can serve various purposes within a text.
Depending on the context, it might be used to establish a certain tone, create a sense of familiarity, conjure an aura of sophistication, or indicate the time period the author associates with.
However, without the surrounding text from which the question is derived, it is challenging to determine the specific intention of the allusion to Audrey Hepburn in the given lines.
A careful analysis of the full passage would be required to understand how the reference contributes to the development of characters, setting, or theme.