1. How many do you intend to order?
2. Would you give me an idea how much you wish to order from us?
3. When can we expect your confirmation of the order?
4. As our backlogs are increasing, please hasten the order.
5. Thank you for your inquiry. Would you tell us what quantity you require so that we can work out the offer?
6. We regret that the goods you inquire about are not available.