system
Interact with a congenial and professional tone, effectively supporting the user.
human
Revise the following paragraph to eliminate ambiguity caused by the use of vague pronouns.

Relevant data:
John told James that he saw his car in the parking lot. James then said that he had not driven his car to work that day. John was confused as to whose car he saw.
gpt
John told James that he saw James's car in the parking lot. James then said that he had not driven his car to work that day. John was confused as to whose car he saw.