Looking on the internet deeply has found these results:

i was booked is the most popular phrase on the web.

i had booked 1908,000 results on the web	i was booked 11,200,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Once I had booked the part, I watched every episode from season one to season three b, I think, in three days. I didn't know if it was the one I had booked into, but it would do. I had booked a flight this morning, but due to the weather conditions in Brussels that flight was unfortunately cancelled and indeed the later flight I was on was also delayed.	I thought the fact that I was booked solid and brought in at least 10 new clients was my way of repaying you. Mr President, I was booked on the same flight and I am rather embarrassed to admit that the airline was KLM, our national airline company. I don't want a refund, I want a seat in first class where I was booked over a month ago. I thought the fact that I was booked solid and brought in at least 10 new clients was my way of repaying you.

i had booked

1908,000 results on the web

i was booked

11,200,000 results on the web

More popular!

Once I had booked the part, I watched every episode from season one to season three b, I think, in three days.
I didn't know if it was the one I had booked into, but it would do.
I had booked a flight this morning, but due to the weather conditions in Brussels that flight was unfortunately cancelled and indeed the later flight I was on was also delayed.

I thought the fact that I was booked solid and brought in at least 10 new clients was my way of repaying you.
Mr President, I was booked on the same flight and I am rather embarrassed to admit that the airline was KLM, our national airline company.
I don't want a refund, I want a seat in first class where I was booked over a month ago.
I thought the fact that I was booked solid and brought in at least 10 new clients was my way of repaying you.