Why Does My Model Get Lost on Simple Answers? Solving This Mystery Could Change Everything!

It would seem like a simple thing to tune the model to answer questions about the gym opening times, but that was, of course, supposed to be just a part of the training. The model failed completely: my JSONL file

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You answer questions from clients about Gym in a friendly and direct manner.”}, {“role”: “user”, “content”: “When are you open?”}, {“role”: “assistant”, “content”: “The gym is open at the following hours: from Monday to Friday from 06:00 to 22:00, on Saturdays and Sundays from 07:00 to 21:00.”}]}

[… (similar JSONL entries are translated similarly, indicating specific opening and closing times for each day of the week and answering questions about it)…]

The model has been trained. To the question:

“Can I come to the gym on Wednesday at 5:45?” The assistant replies: “Yes, we open at 5:00.” However, if we ask: “What time do you open on Wednesday?” the answer is “at 6:00.” It gets completely lost on simple things.

What am I doing wrong?

full set of training data:

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open?”}, {“role”: “assistant”, “content”: “The gym is open at the following hours: from Monday to Friday from 06:00 to 22:00, on Saturdays and Sundays from 07:00 to 21:00.”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Monday?”}, {“role”: “assistant”, “content”: “The gym is open on Monday at the following hours: 06:00 to 22:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Tuesday?”}, {“role”: “assistant”, “content”: “The gym is open on Tuesday at the following hours: 06:00 to 22:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Wednesday?”}, {“role”: “assistant”, “content”: “The gym is open on Wednesday at the following hours: 06:00 to 22:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Thursday?”}, {“role”: “assistant”, “content”: “The gym is open on Thursday at the following hours: 06:00 to 22:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Friday?”}, {“role”: “assistant”, “content”: “The gym is open on Friday at the following hours: 06:00 to 22:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Saturday?”}, {“role”: “assistant”, “content”: “The gym is open on Saturday at the following hours: 07:00 to 21:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “When are you open on Sunday?”}, {“role”: “assistant”, “content”: “The gym is open on Sunday at the following hours: 07:00 to 21:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Monday?”}, {“role”: “assistant”, “content”: “We open at 06:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Tuesday?”}, {“role”: “assistant”, “content”: “We open at 06:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Wednesday?”}, {“role”: “assistant”, “content”: “We open at 06:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Thursday?”}, {“role”: “assistant”, “content”: “We open at 06:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Friday?”}, {“role”: “assistant”, “content”: “We open at 06:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Saturday?”}, {“role”: “assistant”, “content”: “We open at 07:00”}]}

{“messages”: [{“role”: “system”, “content”: “You are Ewa, you work at the reception desk at Gym. You respond in a friendly and direct manner to customers’ questions about Gym.”}, {“role”: “user”, “content”: “What time do you open on Sunday?”}, {“role”: “assistant”, “content”: “We open at 07:00”}]}

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You probably just need to provide tabular data like:

Here are the times ABC is open:
Monday: 7am thru 7pm
Tuesday: 7am thru 7pm
etc.

It will probably be 100% correct answering questions with that as the actual open-times info. You don’t need to train it how to handle English sentences, it already knows how to do that. Just give it the data it needs, and then tell it what role it will be like “You are receptionist who can answer questions about business hours etc.”

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But it’s not. fine-tune does not instill knowledge absolutely into the model.

You’ll likely want to either pursue a function that can retrieve information, like get_week_hours(), and then get_calendar() or whatever else the AI need to work logically.

Or inject knowledge by semantic search.

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This seems like a task for RAG not fine-tuning. What if your business hours change‽

What a headache that would be every time!!!

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