Dear …,
Thank you very much for your email.
In regards to your inquiry, could you please help to share a little more details of the task (especially the work volume)? I.e., will it be daily or will it be on a per-request basis? Is it possible to manage it within Vietnamese working hours, or should it be done out of Vietnamese working hours?
We also appreciate your understanding that we will need a pilot testing in order to propose our fee (Of course a NDA can be signed if required).
We look forward to your next response.
With best regards,