denpyou no kakikata ga wakaranakatta node, madoguti no hito ni kikimasita.

書き方 means the way to write or how to fill out/write something.

It is made from:

• 書き = the ます-stem of 書く (to write)
• 方 = way / method of doing something

So:

• 書く = to write
• 書き方 = way of writing / how to write

This pattern is very common in Japanese:

• 使い方 = how to use
• 読み方 = how to read
• 作り方 = how to make

In this sentence, 伝票の書き方 means how to fill out the form/slip.

The の connects two nouns.

• 伝票 = slip / form / voucher
• 書き方 = way of writing

So 伝票の書き方 literally means the slip's way of writing, which in natural English becomes how to fill out the slip or the way to write on the form.

This use of の is extremely common in Japanese for showing that one noun modifies another:

• 日本の車 = Japanese car / car of Japan
• 学校の先生 = school teacher / teacher at the school
• 本の名前 = the book's title / the name of the book

Because 分かる usually marks the thing understood or not understood with が.

So:

• 書き方が分かる = to understand how to write it
• 書き方が分からない = to not understand how to write it

This is one of those patterns that often feels different from English. In English, we say I don't understand X, and learners may expect something like Xを分からない, but standard Japanese uses が with 分かる.

So here:

• 伝票の書き方が分からなかった = I didn't understand how to fill out the form

Because the speaker is describing a situation that existed at that time.

The sequence is:

1. The speaker didn't understand how to fill out the form.
2. So the speaker asked the person at the counter.

That is why the first verb is in the past:

• 分からなかったので = because I didn't understand
• 聞きました = I asked

Using 分からないので would sound more like because I don't understand right now.
Using 分からなかったので matches the past event: at that moment, the speaker didn't understand, so they asked.

ので means because, since, or so.

In this sentence:

• 分からなかったので、窓口の人に聞きました。
• Because I didn't understand, I asked the person at the counter.

It is similar to から, but ので often sounds:

• a little softer
• more explanatory
• a bit more formal or polite in many situations

Compare:

• 分からなかったので、聞きました。 = Because I didn't understand, I asked.
• 分からなかったから、聞きました。 = Because I didn't understand, I asked.

Both are natural, but ので can sound slightly less blunt.

窓口の人 literally means the person at the window/counter.

Breakdown:

• 窓口 = counter / service window / front desk
• 人 = person
• 窓口の人 = the person at the counter

This is a very common way in Japanese to identify someone by role or location.

Depending on context, it could mean:

• a bank clerk
• post office staff
• reception staff
• service desk employee

So it does not necessarily mean a specific job title; it simply means the person working at the service counter.

Because に marks the person you ask.

With 聞く meaning to ask, the pattern is often:

• person に question/object を 聞く

So:

• 先生に聞く = ask the teacher
• 友達に聞く = ask a friend
• 窓口の人に聞きました = asked the person at the counter

Here, the exact thing asked is omitted because it is already clear from context: the speaker asked about how to fill out the form.

Yes. 聞く can mean several related things, including:

• to hear
• to listen
• to ask

The meaning depends on context and particles.

Examples:

• 音楽を聞く = listen to music
• 話を聞く = listen to a story / hear what someone says
• 先生に聞く = ask the teacher

In your sentence, because it is person に 聞く, the meaning is clearly to ask:

• 窓口の人に聞きました = I asked the person at the counter

Because Japanese often leaves out subjects when they are understood from context.

In English, you usually need to say I:

• I didn't understand..., so I asked...

In Japanese, that I is often omitted if it is obvious.

So the sentence naturally leaves out 私:

• 伝票の書き方が分からなかったので、窓口の人に聞きました。

If you added 私 or 私は, it would still be understandable, but it often sounds unnecessary unless you need emphasis or contrast.

More or less, yes. The literal structure is close to:

• 伝票の書き方 = the form's way of being written / how to write the form
• が分からなかった = was not understood
• ので = because
• 窓口の人に聞きました = asked the person at the counter

A very literal translation would be:

• Because I didn't understand the way to write the form, I asked the person at the counter.

But natural English would usually be:

• Because I didn't know how to fill out the form, I asked the person at the counter.

So yes, the literal wording is a bit different from English, but the overall meaning is the same.

Yes. 伝票 is a business/service-related word, and its exact English translation depends on the situation.

It can refer to things like:

• slip
• form
• voucher
• sales slip
• receipt-related document

That is why translations may vary. In this sentence, the important point is that it is some kind of written document the speaker needed to fill out.

So 伝票の書き方 is best understood as:

• how to fill out the slip/form
• not necessarily just how to write the word 伝票

Yes. The sentence has two main parts:

1. 伝票の書き方が分からなかったので = because I didn't understand how to fill out the form

2. 窓口の人に聞きました = I asked the person at the counter

So the first clause gives the reason, and the second clause gives the action that resulted from that reason.

This is a very common Japanese sentence pattern:

• Reason + ので / から, result

For example:

• 道が分からなかったので、駅員に聞きました。 = Because I didn't know the way, I asked the station staff.

• 漢字が読めなかったので、辞書で調べました。 = Because I couldn't read the kanji, I looked it up in a dictionary.