Hi, I want to organize a party for my buddy Mark. He just got his MEng!
At what venue would you like to have your party organised?
 Ideally, it should be on Sunday at the West Bay Venue, 12 pm, and I expect about 78 to show up.
May I have your name, please?
John
Venue too small for 78
Can we try another venue, then?
OK, the Southside Venue would be happy to accommodate you on Sunday @ 12 pm.
Can I book it for you now?
How exciting for Mark to have finally gotten his Masters! It was his dream
Great, your party has been successfully booked at the Southside Venue on Sunday at 12 pm!
Oh shoot, I just remembered Mark is away on Sunday. Can we do Saturday instead?
Great, your party has been successfully booked at the Southside Venue on Saturday at 12 pm!
Great, that's a relief. 
Is there anything else that I can do for you?
It would have been the best to get West Bay, but this sounds like a good alternative.
Thank you and goodbye.
Thanks very much for your help! Bye!
Thank you and goodbye.