What fluteguy18 said +1
If you are just beginning to play, it really will not matter much what flute you buy. Any flute in a good playable condition will work. As you progress, you will develop preferences toward different features. I have seen students progress just fine even on the cheapest instruments. Playability is the key!!!
You can get good deals on used instruments. However, I have rarely purchased a used instrument that did not need some kind of adjustment. Even if the instrument was playable upon arrival. The best place to purchase used instruments are dealers, or from instrument repair shops. The instruments may still require adjustment. However, most of these places will give you some type of return/guarantee that may cover those type of issues.
Now, the
very "soft and calm"
part. That is all up to you. A good flute player/flautist can sound good on the worse instrument. A player that sucks will sound bad on any instrument. What ever instrument you buy, make sure you get the most out of it. If you do not like how you sound, work on adjusting your playing. Practice time will always take you farther than flute dollars. Any day of the week!!!!
Welcome to the flute board!!!
Phineas