Hello sir,
I am the right person for this job. I have a lot of experience in recording voice which I will do according to your request. I am dependable and punctual, so I will complete this task on time. Therefore, I can help you record a 1000 sentences. If you're satisfied with it I am very much looking forward to your response and hope we can work together.
Thank you for reviewing my proposal and looking forward to your positive feedback.
Regards,
Fatin Nurhana