Mana mungkin saya membatalkan reservasi sekarang kalau hotel belum mengirim konfirmasi baru?

Mana mungkin is an idiomatic expression meaning something like how could that possibly be possible?, there’s no way, or that’s impossible.

Even though mana usually means where, in mana mungkin it is part of a fixed rhetorical expression. Native speakers do not usually interpret it literally as a question about location here.

So the tone is not neutral. It shows disbelief or strong objection.

This is one of those cases where Indonesian uses a question word idiomatically.

In mana mungkin, mana does not really mean where in a literal sense. The whole phrase works together as a set expression meaning how could that be possible?

You can think of it as similar to idiomatic expressions in English where the parts do not fully match the literal meaning.

Other similar Indonesian expressions include:

• Mana bisa? = How could that work? / No way
• Mana ada? = There’s no such thing / That doesn’t happen

So it is best to learn mana mungkin as a chunk.

It is common in everyday speech and writing, and it sounds natural, but it is not the most formal possible phrasing.

It is:

• very common in conversation
• acceptable in informal writing
• somewhat expressive or rhetorical

A more neutral or formal way to say something similar might be:

• Tidak mungkin saya membatalkan reservasi sekarang...
• Bagaimana mungkin saya dapat membatalkan reservasi sekarang...

So mana mungkin sounds more emotional or emphatic than plain tidak mungkin.

Because mana mungkin saya membatalkan... already implies ability or possibility.

In Indonesian, mungkin often carries the idea of possibility by itself, so bisa is not always necessary.

Compare:

• Mana mungkin saya membatalkan reservasi sekarang...
• Mana mungkin saya bisa membatalkan reservasi sekarang...

Both are possible. The second one is a bit more explicit, but the first is more streamlined and natural in many contexts.

So the version without bisa is not missing anything; it is just more concise.

Membatalkan is a transitive verb meaning to cancel something.

• membatalkan reservasi = to cancel the reservation

By contrast, batal is usually an adjective or intransitive idea meaning cancelled, called off, or not happening.

For example:

• Reservasinya batal. = The reservation is cancelled.
• Saya membatalkan reservasinya. = I cancelled the reservation.

So in your sentence, membatalkan is used because saya is actively doing the cancelling to the object reservasi.

Both can work, but they are slightly different in flavor.

• reservasi is a loanword from reservation
• pemesanan comes from pesan and means booking/order

In hotel, flight, and travel contexts, both are common. Reservasi often sounds a bit more directly tied to hospitality or travel language, while pemesanan is broader and can also be used for ordering things in general.

So:

• membatalkan reservasi = very natural
• membatalkan pemesanan = also natural

There is no major grammar difference here, mostly a vocabulary choice.

Sekarang modifies the action membatalkan reservasi, meaning cancel the reservation now.

Its placement after the object is very normal in Indonesian. Indonesian word order is flexible enough that adverbs like sekarang can appear in several positions, depending on emphasis.

These are all possible, though not always identical in emphasis:

• Saya membatalkan reservasi sekarang
• Saya sekarang membatalkan reservasi
• Sekarang saya membatalkan reservasi

In your sentence, putting sekarang after reservasi sounds smooth and natural. It keeps the main action together first: membatalkan reservasi, then adds the time.

Here kalau means if, but in this kind of sentence it also feels like when/since/as long as depending on context.

The speaker is giving the reason why cancelling is not possible:

How could I cancel the reservation now if the hotel hasn’t sent a new confirmation yet?

So kalau introduces the condition or obstacle.

You could often replace it with jika, which is a bit more formal:

• ...jika hotel belum mengirim konfirmasi baru

But kalau is more common in everyday language.

Belum means not yet, while tidak means plain not.

That difference is very important here.

• hotel belum mengirim konfirmasi baru = the hotel has not sent a new confirmation yet
• hotel tidak mengirim konfirmasi baru = the hotel did not send / does not send a new confirmation

Belum suggests that the action is still expected or may still happen later. That is exactly the idea in this sentence: the confirmation has not arrived yet, so cancelling now is not possible.

So belum is the correct choice because it expresses an unfinished situation.

Here baru means new, not just.

Indonesian baru can have more than one meaning depending on position and structure:

• konfirmasi baru = new confirmation
• baru mengirim = just sent

That is an important difference.

In your sentence:

• hotel belum mengirim konfirmasi baru

the word baru comes after the noun konfirmasi, so it describes that noun:

• a new confirmation
• not just confirmed

So the meaning is that the hotel has not yet sent an updated or replacement confirmation.

Because in Indonesian, adjectives usually come after the noun they describe.

So:

• konfirmasi baru = new confirmation
• hotel besar = big hotel
• kamar murah = cheap room

This is a very regular pattern in Indonesian.

So konfirmasi baru is exactly the normal word order for new confirmation.

Mengirim means to send, which fits well with konfirmasi as a document, message, or email.

So mengirim konfirmasi baru means the hotel has not yet sent the new confirmation.

Other verbs are possible, but they change the nuance:

• memberi konfirmasi = to give confirmation
• mengirim konfirmasi = to send confirmation
• mengonfirmasi = to confirm

Your sentence focuses on receiving a new confirmation message or document, so mengirim is very natural.

Yes. Indonesian allows some flexibility in word order.

For example:

• Kalau hotel belum mengirim konfirmasi baru, mana mungkin saya membatalkan reservasi sekarang?
• Mana mungkin saya membatalkan reservasi sekarang jika hotel belum mengirim konfirmasi baru?

These versions mean basically the same thing.

The original version starts with mana mungkin, which gives immediate emphasis to the speaker’s disbelief. If you move the kalau clause to the front, the sentence feels a bit more structured and explanatory.

So the core meaning stays the same, but the focus can shift slightly.

It has a rhetorical and slightly frustrated tone.

The speaker is not calmly asking whether cancellation is possible. They are basically saying:

• How am I supposed to do that?
• That makes no sense
• I can’t do it under these conditions

So mana mungkin makes the sentence sound stronger than a plain factual statement such as:

• Saya belum bisa membatalkan reservasi sekarang karena hotel belum mengirim konfirmasi baru.

That alternative is more neutral. Your original sentence sounds more like a protest or objection.