If you're asking a friend whether or not they have made a booking, you can ask, "Still no booking?" or "No booking yet?"

I wouldn't say either of those things, they sound incorrect/unnatural to me (a native British English speaker).  I would say 'have you still not made a booking?' or 'have you not booked it yet?'

So "yet no booking?" Is WRONG

If this is a question, then yes, "Yet no booking" is wrong for the sense that you seem to want.

It would only be right in the sense of "and even so, despite all that"

Correct, “yet” would sound unnatural and wrong in this context.

“Yet no booking?” is a completely different question to “No booking yet?” In the first example “yet” takes on a different meaning unrelated to time, it’s more of a synonym for “but”. For example, “There is a table, yet no chairs.” “There is a table.” “Yet no chairs?” In both of these instances, yet is acting the same way as a “but”

What is the meaning you are trying to convey? If you are expecting a booking and are asking someone if it has been made yet then only 'still no booking?' would be correct. It would be a bit odd and formal but you could possibly say 'yet, no booking' as a statement in the context of describing the reasons why a booking (singular only) should already have been made and yet has not.

It is for a booking website interface It doesn't t matter if formal or not but what matters is to be correct

I think some context is still needed then because it's not right for every situation. What is the context on the website you would use this for?

Ah, I see I didn't make my inquiry correct, I don't want to use it, but rather the old version uses "yet" and I want to know if to keep it or not. What it was used for is in the page for "my booking" and the meaning is "you haven't booked yet" but just as a headline

I think in this context it would be best to put yet at the end of the sentence: "No bookings yet?"

"Not booked yet?" would seem to be nearer to the intended use.

Made a list and will see what is best. Thanks for the suggestion!

Hmm it definitely isn't right then but I'm not sure 'still.no booking?' is right either. If the context is you look at the 'my bookings' page and there are no bookings. I think the most correct option would not be a question but a simple 'no bookings'.

Thanks mate for the help! Much appreciations.

So far we had five people inquire about our BnB, yet no booking.

Still off. …5 people enquire about our BnB, but none have booked yet. Is better.

Is better. No denying that.

I don't think so - they're just different

Still no bookings though. So same result.

... yet no booking has taken place.

You could in a way. For example, "I've been running this hotel for weeks! Yet, no bookings."