Have you answered that email?
We will call you to arrange a meeting.
We will need to postpone the meeting.
We will need to cancel the meeting.
Can you inform us if you received any further information?
Is this OK with you?
I am writing to ask about your services.
I'm sorry to tell you this.
I regret to inform you this.
let us know
put off
enquire
set up
replied to
convenient
call off