I just booked a tour through an operator for Orbus.
Were you told what airline you were going to fly? What happens to seat assignments?

Who is Orbus?

Silly Boy it is a Bus, like in "Is that a truck Or Bus"

Sorry could not resist the silly joke!

I wondered if it was a misspelling of Globus.

If the person comes back - I think any tour would have to tell you the airline otherwise you wouldn't know where to go at the airport! The couple of times that I took tours, we were told the airline and also got our seat assignments in advance.

Debbie