EWS track meeting conflict : Your meeting request was declined because there are conflicts.

We have impersonation rights on Room Calendar and we are subscribing to exchange room calendar using streaming notifications. I am not getting any notification for a decline by room calendar when there is a conflict.

Scenerio:

Organizer A booked Room 1 and Room 2 for 6,7,8 and 9. Room 2 was not available on 7. EWS gives notification for create in Room 1 as well as Room 2. Considering this I created bookings in my room booking system.

Now Room 2 declines the series because of a conflict in one of the occurrence. EWS does not provide any notification for this. So there is no way to delete booking created in Room 2. 

Question:

Please suggest if this is by design or i am missing something. I am subscribing to all events in the calendar folder.

Question:

Also, if i use meeting.Resources.ResponseType to find the response status of Room2, I don't think that EWS will provide this because Rooms were added as an attendee/Resource and only organizer knows who has declined/accepted the meeting. We are accessing the Room's calendar. Not sure how will this get processed.

Thanks and Regards
Rohit