The day before yesterday afternoon, my sister called me telling me that her daughter was oin the air from San Francisco to Shanghai, then would take another flight to Chongqing at midnight.

I haven't seen her for four years, s. She has complained to her mother many times before about how she has missed us.

We all know all due tothat because of the coronavirus, China has implemented a very strict zero-COVID strategy which letmakes travelling internationally extremely difficult.

My niece started to work two years ago in Californiain California two years ago.

She preparedlans to take two weeks off this time.

She came to see us after only sleeping 6 hours yesterday after overa 15+ hours long flight journey.

わー。

I sincerely hope she has a wonderful and nice stay at home.

This sounds more natural in the US.

The day before yesterday afternoon, my sister called me telling me that her daughter was on the airflying from San Francisco to Shanghai, then wouldbefore takeing another flight to Chongqing at midnight.

"On the air" usually means live on radio or television.

We know all due to the coronavirus, China has implemented a very strict zero-COVID strategy which letmakes travelling internationally extremely difficult.

She came to see us only sleeping 6 hours yesterday after an over 15 hours long flight journey.

I sincerely hope that she has a wonderful and nice stay at home.