[简答题]Write a short passage based on the following topic.Mr. Smith placed an order of 5,000 bikes to you today. Since you have received another big order, you can't deliver goods for Mr. Smith in time. So you have to write an letter to decline his order.

Dear Mr. Smith,
     Last month, we sent you quotation for 5, 000 bikes based on CIFl4 London. Thank you for placing an order with us today. However, we are sorry to inform that we can't accept your order at present.
     Since we have received another big order last week and we must deliver the goods in time. If you like, we can introduce another bicycle manufacturer to you.
     Hoping your understanding and we are looking forward to our next cooperation with you.