Для брони стола в кафе просят предоплату.

Because для normally requires the genitive case.

• бронь is the dictionary form, or nominative
• after для, it becomes брони

So:

• бронь = a reservation / booking
• для брони = for a reservation / for booking

This is a very common pattern in Russian:

• для друга = for a friend
• для дома = for the house
• для брони = for a reservation

Because бронь чего? often takes the genitive case for the thing being reserved.

Here:

• стол = table
• стола = of a table

So бронь стола literally means reservation of a table, which in natural English is table reservation or reserving a table.

This is a very typical Russian noun + genitive structure:

• чашка чая = a cup of tea
• дверь комнаты = the room’s door / door of the room
• бронь стола = reservation of a table

В кафе means in the café or at the café.

The word кафе is one of those Russian nouns that is usually indeclinable, meaning its form does not change across cases.

So you get:

• кафе = café
• в кафе = in the café
• из кафе = from the café

Even though the case changes, the word itself stays кафе.

In this sentence, в кафе tells us where the table is being reserved: a table in a café.

No specific person is named. This is a very common Russian way to speak generally or impersonally.

Просят literally means they ask, but here it really means something like:

• they ask for
• people ask for
• it is requested
• the café asks for

In natural English, we might say:

• They ask for a deposit
• A deposit is required
• The café asks for prepayment

Russian often uses 3rd person plural like this when the subject is unknown, unimportant, or general.

Because the hidden subject is understood as they.

The base verb is:

• просить = to ask for, request

Its present-tense forms include:

• я прошу = I ask
• ты просишь = you ask
• они просят = they ask

In this sentence, они is not stated, but it is implied. Russian often leaves out pronouns when they are obvious from the verb form.

So просят предоплату literally means they ask for prepayment.

Предоплата means prepayment, advance payment, or sometimes deposit, depending on context.

It is made from:

• пред- = before / in advance
• оплата = payment

So it literally means payment in advance.

In this sentence, the idea is that before the reservation is confirmed, the café wants some money paid ahead of time.

Depending on the situation, English translations could include:

• prepayment
• advance payment
• deposit

Yes, both exist, but they are used a bit differently.

• бронь = reservation, booking
• бронирование = the act/process of reserving, booking

Бронь is shorter and very common in everyday speech, especially in contexts like tables, hotels, tickets, and so on.

Examples:

• бронь стола = table reservation
• бронирование столика = reserving a table / table booking

Very roughly:

• бронь often sounds like the reservation itself
• бронирование often sounds more like the process or a more formal term

In this sentence, для брони стола is perfectly natural.

Yes. Столик means small table, but in many restaurant contexts it is simply the usual polite word for table.

So both are possible:

• бронь стола
• бронь столика

In a café or restaurant, столик is often especially common:

• Заказать столик = to book a table
• Бронь столика = table reservation

Using стола is still understandable and natural, but столика may sound a bit more typical in hospitality language.

Not with the same meaning.

• для брони стола = for reserving a table / for a table reservation
• за бронь стола would more naturally mean for the reservation of a table in the sense of in exchange for it or as payment for it

Russian prepositions matter a lot here.

In this sentence, для shows purpose:

• for booking a table

If you used за, it would shift toward the idea of payment for something:

• платить за бронь = pay for the reservation

So для брони is the correct choice here.

Russian has no articles, so there is no direct equivalent of a/an/the.

That means a phrase like стола can mean:

• a table
• the table

The exact meaning depends on context.

Here, English would normally say something like:

• For reserving a table in the café, they ask for a deposit
• To reserve a table at the café, a deposit is required

Russian leaves that distinction unstated unless something in the context makes it clear.

No, Russian word order is fairly flexible, though different orders can sound more natural in different contexts.

The original sentence:

• Для брони стола в кафе просят предоплату.

is natural and emphasizes the condition or context first: for reserving a table in a café...

You could also hear:

• В кафе для брони стола просят предоплату.
• Предоплату просят для брони стола в кафе.

These all mean roughly the same thing, but the emphasis changes:

• putting в кафе first emphasizes the place
• putting предоплату first emphasizes the prepayment

Russian often moves pieces around for focus, while the case endings keep the relationships clear.

Yes. A word-for-word translation helps with grammar, but a natural English version may sound different.

Literal structure:

• For reservation of a table in a café, they ask for prepayment.

More natural English versions:

• They ask for a deposit to reserve a table at the café.
• A deposit is required to book a table at the café.
• To reserve a table at the café, you have to pay in advance.

This is very common when translating Russian: the grammar may be different, but the meaning stays the same.