You made a grevious mistake - you failed to impress your
interviewer.
As you are in sales, the greatest mistake you can make is
not 'selling yourself'. It's all about sales, and in a
nutshell, your confidence to make a sale, which in turn, will
profit the boss. You cant even sell your capability to the
interviewer. Experience and the lack of it can be overcome
with enthusiasm, confidence and interest.
If you even failed at the initial stage, you are gone case and
no one, no one will ever hire you. Production work, with no
customer contact, may be suitable instead.
Some fake it, but in time, with no sales, they get the boot. If
it is boutique job you want to excel in, then you must at least
read up on some fashion rags, on the latest trends people will buy.
If its a high class one, then you better be knowledgeable about
high society, the big names in the fashion industry, the buyers,
clients and designers.
No boss will pay for a flower vase. Every stage - from entering
the interviewer's door to closing the door will you be assessed.
Your personality, your smile, your eyes, your confidence, your
hair, makeup, dress is vital and critical, even though it may just
be a retail sales job. More so in these difficult times.
So, best buckle up if you want that job. There are hundreds
others, and thousand others PRs/foreigners salivating for it. Dont
lose out.
Good luck.