Can you tell me which gaming platforms offer the game Call of Duty?
user
The game Call of Duty is available on a range of different platforms, which are often used by a range of different platforms.
assistant
Okay. Do you know which platforms offer the game?
user
The game Call of Duty is available on a range of different platforms, which are often used by a range of different platforms.
assistant
Can you tell me which gaming platforms offer the game Call of Duty?
user
The game Call of Duty is available on a range of different platforms, which are often used by a range of different platforms.
assistant
Okay. Do you know which platforms offer the game?
user
I do know which platforms offer the game.  But I’m not sure what you mean by “which”.
assistant
Can you tell me which gaming platforms offer the game Call of Duty?