Meeting rooms of various sizes are needed for

In my opinion, the most important thing when choosing a hotel for an international conference is the meeting room or rooms. For example, you may need a large room where everyone can be together for keynote speeches or presentations, and smaller meeting rooms for informal group discussions.
    Then, if people are coming from different countries, you need to find out about rooms for them to stay in. These should be spacious and comfortable, and have facilities for using e-mail and laptops, as people have to keep in touch with their offices or headquarters even when they’re away.
    My next point is facilities for hotel guests - things like a bar, a good quality restaurant, preferably offering local food, and fitness and sports centres. These are imp-ortant because delegates need to be able to relax after a long day of meetings and get to know each other in informal situations.
    Finally, for an international conference where delegates are coming from different countries, it can be very useful to choose a hotel that has good transport connections with the nearest airport, and/or places of interest. This can save everybody a lot of time.