HDo you know how I can I get to Kokubunji station?

B: That app ilooks good/handy.

What's its name called?

A: (Well,) It's called "Japan travel".

I guess this is soit's useful for foreigners because you can look up Japanese train lines in English.

Can you understand the explanation when you look at this screeninfo on this page?

If you can, I think if you downloaded it that would solve the problem?the app it might help.

But there's almost nothing on how to use it, haha.

It doesn't have many instructions on how to use it.

Bute careful though, bus stops are also listed in the search results, so please make sure that you have typed in the correct station name.

Don't start a sentence with But.

Would you like to try onegive it a try?

So this white area is the name of the station you're getting leaving from (or arriving and out oft?), and this gray area is the name of the line and the stations you're passing through.

So does it seem alright?¶
Is there anything else I can help you with?

It works but a native wouldn't say that.

How cando I get to Kokubunji sStation?

Your sentence was fine, but this sounds more natural.

A: Oh, yeah.

I am trying to imagine how I would naturally answer this question, and I think I'd just say 'Oh' or 'Oh, sure...'

Gimme a minute, ok?One sec.

B: That app iseems good.

Since B has never used the app, they wouldn't say 'the app is good' because they haven't used it yet (no experience). In this case, 'seems' works better.

What's its name called?

A: Well, "Japan travel".

I guess this is soit would be useful for foreigners because you can look up Japanese train lines in English.

Anyway, let's get back to the main topic...

Once again, your sentence is perfect. I just think if I was talking to someone in real life, I wouldn't say 'let's get back to the main topic.' Saying 'Anyway...' implies that you are moving on with the topic.

(※I'm using thate app to explain)

Can you understand the explanation when you lookDoes this make sense? (While pointing at thise screen?)

Another way to say this that is closer to what you originally wrote would be 'Are you able to understand the directions from the app?'

If so, you can, I think if you downloaded it that would solve the problemould download the app yourself?

I'll download it right now.

You sentence is fine, this just sounds more natural.

So cCould you show me how to use it?

B: Wait a minute.Ok, sorry, one second.

'One sec' or 'one second' is more natural than asking someone to wait a minute (not used very frequently).

A: YesOk.

B: That’s itOk, it's done.

I assume B is telling A that the app is finished downloading

But tThere's almost nothing how to use it, haha.basically no instructions on how to use it, but it's super easy.

It's super easy.

Just enter the name of the current station here and the station you want to go to here.

Instead of 'enter' you could say 'just type the name' or 'just put the name'.

But, bus stops are also listed in the search results, so please make sure that you have the correct station name.

WouldDo you likewant to try one?

B: Ohk, thank you.

That's really helpful!

If you want to be extra natural sounding, you could say 'that's super helpful.' However, because this is the end of the interaction, you might want to say 'You've been extremely helpful.'

So does it seem alrightare you good to go?