Please correct my letter, requesting for a cost negotiation appointment.
Dear Mr. < >,
With reference to our telcon regarding < > software for < >. Please give me a appointment for a cost negotiation discussion on our software.
Awaiting for your reply.
Thanks & Regards,
Dear Mr. < >:
With reference to our telephone conversation of <date> regarding < > software for < >, when would be convenient for you to discuss costs and other details of our products?