Final answer:
The exact times Trish said she wouldn't be 'using' the rooms cannot be determined without more context.
Step-by-step explanation:
In the given texts, there are several mentions of various rooms and their usage. However, it is unclear which rooms are being referred to. The texts mention a kitchen, a sitting room, a bedroom, and a private room, but it is not specified which rooms Trish mentioned. Without more context, it is difficult to determine the exact times Trish said she wouldn't be 'using' the rooms.