The requirements listed in the mail should be parallel in structure. In this mail, the listed requirements are not parallel in structure. Requirements 1, 3 and 4 are complete sentences, while No. 2 is a noun phrase. We need to change the 4 requirements either to complete sentences or to noun phrases.

Rewritten Version for Reference:

Hi Sally,

Our company will hold a two-day conference on Saturday and Sunday September 10 and 11. We are looking for a conference hall for 150 delegates.

Our requirements are:

1. A conference room with theatre-style seating.

2. A reception area for welcoming and registering delegates

3. Morning refreshments at 10:30 a.m. and afternoon refreshments at 3:00 p.m..

4. A buffet lunch to be served from 12:00 a.m. to 1:30 p.m..

If you have suitable facilities please let us know.

We hope to hear from you soon.

Regards,

Tony