Mom called you to say that there was a fire. The fire here may be related to the dreamer's physical tension or anxiety, or angry because of worry. But in the end, her sister set the fire. The girl here is obviously not your sister, but the young female personality in your heart. Her suicide may be related to the fact that you don't need this weak and seemingly useless character. The appearance of the reservoir may be your inner balance with yourself.
It's normal to dream without a father, because if you had a father, you wouldn't have such a dream. Because the father, in the dream, mostly represents the mature male personality.
From your dream, you are a little nervous and anxious about this first foreign business. Of course, you also made a lot of preparations. From your dream, you can see. Besides, you have made a lot of balanced psychological preparations for yourself.
Generally speaking, this dream is not an omen, but a reflection of your heart: tension, anxiety, preparation and balance.
Drink plenty of water, take a deep breath and relax. Isn't it business? Bold, cautious, no problem, believe in your own ability.
Of course, the most accurate person to interpret dreams should be yourself. Good luck.