Dear Siri,
                           Thank you for your update on the project. We would 
                           be delighted to meet up with you to answer any questions that you may have. How about next Wednesday at 11 a.m.?
                           Regards,
                           Frank
			          
                           Dear Frank,
                           Thank you for your email and for proposing a meeting. It would be great if we could 
                            meet up with you to talk through any doubts we have and how to go about
                           our collaboration. Wednesday at 11 a.m. is perfect for us.  We look forward to seeing you then. 
                           Our address is ...
                           Regards,
                           Siri