Setelah sampai di hotel, Mbak resepsionis berkata bahwa pemesanan saya sudah ada, tetapi saya tetap menunjukkan email konfirmasi.

Here it means arrive.

The word sampai can mean two different things depending on context:

• sampai = to arrive / to reach
• sampai = until

In Setelah sampai di hotel, the pattern sampai di + place clearly means arrive at a place.

So:

• sampai di hotel = arrive at the hotel

If it meant until, it would usually appear in a different structure, such as:

• sampai besok = until tomorrow
• sampai jam lima = until five o’clock

Because Indonesian often omits the subject when it is obvious from context.

So Setelah sampai di hotel naturally means After arriving at the hotel, with the subject understood to be the speaker.

You could also say:

• Setelah saya sampai di hotel

That is grammatical, but it is a bit more explicit than necessary. Indonesian often prefers the shorter version when the subject is already clear.

Mbak is a polite form of address for a woman, especially a young woman or an adult woman in service situations. It is very common in Indonesia, especially on Java, but widely understood elsewhere too.

In this sentence, Mbak resepsionis refers politely to the female receptionist.

A rough English equivalent might be something like miss, ma’am, or simply a polite way of saying the lady receptionist, but none of those matches exactly.

Related terms you may also see:

• Mas = polite address for a young man
• Pak = sir / Mr. / older adult man
• Bu = ma’am / Mrs. / older adult woman

Because Mbak adds politeness and sounds more natural in everyday Indonesian.

• resepsionis = receptionist
• Mbak resepsionis = the receptionist lady / the receptionist, said politely

This kind of combination is common in Indonesian:

• Pak sopir = the driver, politely
• Mas kasir = the cashier, politely
• Bu guru = the teacher, politely

So Mbak resepsionis is not strange or redundant. It is a very natural way to refer to someone respectfully.

berkata means said, and bahwa means that.

So:

• berkata bahwa pemesanan saya sudah ada = said that my reservation was already there / already on file

The word bahwa is often optional in Indonesian, just like that can be optional in English.

So these are both possible:

• Mbak resepsionis berkata bahwa pemesanan saya sudah ada
• Mbak resepsionis berkata pemesanan saya sudah ada

Using bahwa makes the sentence a little clearer and slightly more formal or written in style.

Also, in everyday speech, many people would use bilang instead of berkata:

• Mbak resepsionis bilang pemesanan saya sudah ada

That sounds more conversational.

Literally, pemesanan saya sudah ada is something like my booking already exists / is already there.

Here, ada does not just mean physical existence in a simple sense. It often means something like:

• exists
• is available
• is present
• is on record

So in a hotel context, pemesanan saya sudah ada means that the reservation was already in the system or already found by the receptionist.

About pemesanan:

• pesan = to order / to book
• pemesanan = booking / reservation / the act or result of booking

In hotel language, Indonesian speakers may also use:

• reservasi saya sudah ada
• pesanan saya sudah ada

All of these can work, depending on style and context.

sudah means already.

So:

• ada = there is / it exists / it is there
• sudah ada = it is already there / it already exists

In this sentence, sudah shows that the reservation had already been made and was already present in the hotel’s records before the speaker showed the confirmation email.

Without sudah, the sentence would simply say that the reservation exists. With sudah, it adds the idea of prior completion.

Here tetap means still, all the same, or nevertheless.

So this part:

• tetapi saya tetap menunjukkan email konfirmasi

means:

• but I still showed the confirmation email
• but I showed the confirmation email anyway

The idea is contrast:

• the receptionist said the booking was already there,
• but the speaker showed the email anyway.

So tetap adds the sense of doing something despite what was just said.

This is a very common question, because both can sometimes be translated as still.

The difference is:

• masih = still, in the sense that something continues
• tetap = still / nevertheless, in the sense of remaining unchanged or doing something anyway

Examples:

• Saya masih di hotel. = I am still at the hotel.
  The situation continues.

• Saya tetap menunjukkan email konfirmasi. = I still showed the confirmation email anyway.
  The speaker did it despite the situation.

So in your sentence, masih would not express the same idea as well. tetap is the right choice.

Because the recipient is already obvious from context.

The speaker is interacting with the receptionist, so Indonesian does not need to repeat that the email was shown to her.

• menunjukkan email konfirmasi = show the confirmation email

If you wanted to make the recipient explicit, you could say:

• saya tetap menunjukkan email konfirmasi kepada Mbak resepsionis

That means I still showed the confirmation email to the receptionist.

So the shorter version is natural because Indonesian often leaves out information that is already understood.

Because in Indonesian, the main noun usually comes first, and the word that describes it comes after.

So:

• email = the main noun
• konfirmasi = the type or function of that email

Therefore:

• email konfirmasi = confirmation email

This head-first pattern is very common in Indonesian:

• kamar hotel = hotel room
• nomor telepon = telephone number
• tiket pesawat = plane ticket

So even though English says confirmation email, Indonesian naturally says email konfirmasi.

Yes, the sentence is natural, especially in neutral written Indonesian. But there are also more conversational ways to say it.

Your sentence is:

• Setelah sampai di hotel, Mbak resepsionis berkata bahwa pemesanan saya sudah ada, tetapi saya tetap menunjukkan email konfirmasi.

A more spoken version might be:

• Setelah sampai di hotel, Mbak resepsionis bilang pemesanan saya sudah ada, tapi saya tetap menunjukkan email konfirmasi.

Or even:

• Setelah sampai di hotel, Mbak resepsionis bilang reservasi saya sudah ada, tapi saya tetap tunjukkan email konfirmasinya.

Differences:

• bilang is more conversational than berkata
• tapi is more conversational than tetapi
• reservasi is also common in hotel contexts
• tunjukkan without meN- is common in casual speech

So your original sentence is good, but it leans a little toward neutral-to-written style rather than very casual spoken Indonesian.