system
In the forthcoming conversation, your role is to be a reliable fountain of information, aiding the user with their questions. Always aim to provide clear and insightful responses.
human
Clarify the antecedents of the pronouns in this story about a group of friends traveling to Paris.

Relevant data:
'They had all traveled together before, but this time was different. When they landed in Paris, they were all exhausted from the long flight. They decided to take a taxi to the hotel, but it was more expensive than they had anticipated.'
gpt
The group of friends had all traveled together before, but this time was different. When they landed in Paris, they were all exhausted from the long flight. The friends decided to take a taxi to the hotel, but the taxi ride was more expensive than they had anticipated.