There are different meanings to these words, not knowing the context of this sentence I can't possibly tell you what you exactly want. You can choose which of the following suits your context and figure it out easily on your own.
Kochira: I, me / this place, here / this person
Sanbanme: third / number three
No: here it indicates possessive relation between the words before and after it
Seki: seat / position / post, rank
One of the possible meanings e.g can be:
This is the seat number three.
'The third number is 7.'
'(This/That/She) is my younger sister.'
'(These/Those/They) are our parents.'
Where's the bathroom.
'It is the first door on the right.'
'It is the second door on the left.'
"Shita" is a Japanese word and in English it means "Down"
I think you mean "genki desu ka". The correct way of spelling it in English would be "ogenki desu ka". It is Japanese for "How are you?" One would usually answer by saying "Genki desu. Anata wa?' which means "I'm fine, and you?"
"O-ai dekite ureshii desu" is a Japanese phrase and in English it means "Nice to meet you"
'The second number is 9.'
'Kochira kara purezento ga arimasu' is polite way to say that, also it's very good to add the usual phrase used in Japanese when offering/presenting etc right after it: 'Hon no kimochi desu', which would mean something like 'It's nothing, It's so humble'.
Bad romaji. Corrected: 'watashi wa anata no tsubasa desu koto wo shitteiru na'. It means 'You know that I am your wings'.