Kalau pemesanan kamar itu belum ditemukan, saya bisa menunjukkan email konfirmasi.

Yes. In this sentence, kalau means if:

• Kalau pemesanan kamar itu belum ditemukan... = If that room reservation hasn't been found yet...

A useful thing to know is that kalau is very common in everyday Indonesian and often sounds more natural in conversation than the more formal jika or apabila.

Depending on context, kalau can sometimes also feel a bit like when or in case, but here if is the best match.

Pemesanan is a noun, meaning reservation or booking.

It comes from the root pesan and the noun-forming pattern pe- -an:

• pesan = to order / book
• memesan = to book
• pemesanan = the booking / reservation

So:

• pemesanan kamar = room reservation / room booking

Using pemesanan makes the phrase work like a noun phrase, which fits this sentence because it is the thing that may or may not be found.

Here, itu marks the noun phrase as something specific: that reservation or more naturally in English, the reservation.

So:

• pemesanan kamar itu = that room reservation / the room reservation

In Indonesian, itu after a noun often helps indicate that the speaker and listener both know which thing is being talked about. It can sound more definite than leaving it out.

Without itu, pemesanan kamar could sound more general.

This is a very common question, and the difference is important.

• tidak ditemukan = not found
• belum ditemukan = not found yet

Belum means something has not happened up to now, but it still might happen later. That fits this situation very well: the reservation has not been located yet, but it may still be found.

So:

• Kalau pemesanan kamar itu belum ditemukan...
  = If the reservation hasn't been found yet...

If you used tidak ditemukan, it could sound more final or absolute.

Yes. Ditemukan is a passive form built with di-.

• root: temu / menemukan = to find
• passive: ditemukan = found / be found

So belum ditemukan literally means has not yet been found.

This passive is very natural here because the focus is on the reservation, not on who is doing the finding. In a hotel context, the implied meaning is something like:

• If the reservation hasn’t been found (by the staff / in the system) yet...

Indonesian often uses passive forms when the doer is unknown, unimportant, or obvious from context.

It can absolutely mean found in a system, record, database, or list, not just physically located.

In this sentence, pemesanan kamar itu belum ditemukan would naturally be understood as something like:

• the reservation hasn't been located in the hotel's records
• the staff can't find the booking yet
• the booking hasn't shown up yet

So even though menemukan/ditemukan literally means find/found, it works perfectly for administrative situations too.

Because pemesanan kamar means reservation of a room or room reservation.

In Indonesian, the main noun usually comes first, and the word after it modifies or specifies it:

• pemesanan = reservation
• kamar = room

So pemesanan kamar literally means reservation room, but in natural English that becomes room reservation.

Then itu comes after the whole noun phrase:

• pemesanan kamar itu = that room reservation

This word order is normal in Indonesian.

Literally, bisa often means can or be able to, but in this sentence it also carries the idea of a polite offer or possible next step.

• saya bisa menunjukkan email konfirmasi
  = I can show the confirmation email

In context, this often means something like:

• I can show you the confirmation email
• I’m able to show the confirmation email if that helps
• I can provide the confirmation email

So yes, it is about ability, but it also functions naturally as a polite suggestion or offer.

Menunjukkan means to show.

So:

• saya bisa menunjukkan email konfirmasi = I can show the confirmation email

This is the verb you use when you want to present or display something to someone.

A small note: Indonesian often leaves out the indirect object if it is obvious.

So although English often says:

• I can show you the confirmation email

Indonesian can simply say:

• saya bisa menunjukkan email konfirmasi

The to you part is understood from context.

In Indonesian, nouns often work in a head + modifier order:

• email = email
• konfirmasi = confirmation

So:

• email konfirmasi = confirmation email

This is very common. The first noun is the main thing, and the second noun tells you what kind of thing it is.

Compare similar patterns:

• nomor kamar = room number
• kartu identitas = identity card
• pesan teks = text message

So email konfirmasi is the normal and natural order.

Yes. You could say:

• Jika pemesanan kamar itu belum ditemukan, saya bisa menunjukkan email konfirmasi.

This means basically the same thing.

The difference is mostly tone:

• kalau = common, everyday, conversational
• jika = a bit more formal or written
• apabila = even more formal

In spoken Indonesian, kalau is usually the most natural choice.

The comma separates the conditional clause from the main clause:

• Kalau pemesanan kamar itu belum ditemukan, = conditional part
• saya bisa menunjukkan email konfirmasi. = main statement

This is similar to English:

• If the reservation hasn’t been found yet, I can show the confirmation email.

In Indonesian writing, this comma is normal and helpful when the if-clause comes first.

Yes, that is a very natural English rendering.

The Indonesian sentence does not explicitly say you, but the passive belum ditemukan allows that meaning to be understood from context. In a hotel situation, the implied meaning is often:

• the staff hasn’t found the reservation yet
• you can’t find the booking yet

So while the structure is literally closer to:

• If the room reservation hasn’t been found yet, I can show the confirmation email

a more natural English translation in real conversation might be:

• If you can’t find the booking yet, I can show the confirmation email.

That is a good example of how Indonesian and English sometimes package the same idea differently.