Please show me example sentences with I'd like to have a seat in the front as much as possible.
and Can I get a window seat, please?

Is this sentence sound natural when I talk? At airport.
can you give me more natural way to talk or daily expression? . Tell me as many daily expressions as possible.

See a translation

'I'd like to have a seat in the front as much as possible.'
'
This doesn't sound natural. I'm not sure exactly what you intended to say, so here are 2 interpretations.

1. By 'as much as possible' you mean the 'proximity to the very front of the plane'
Better to say 'I'd like to have a seat as close to the front as possible' or 'I'd like to sit as close as possible to the front'
Both are natural and common.
Also:
The closer I can sit to the front the better.

2. If, by 'as much as possible' you mean 'as often as possible'.
''I'd like to have a seat in the front as as often as possible' is natural, and is saying that, in general, you like to sit in the front section of the plane, but you are not saying specifically how close you want to sit.
Also:
I always like to sit in the front.
I like to sit towards the front.
I prefer to sit near the front of the plane.
I prefer seats close to the front.

'Can I get a window seat, please' is natural.
Also:
Can I have a window seat, please
I would like a window seat, please.
I prefer the window seat