I would like to book a reservation for dinner.
For how many people?
Five people.
Which city?
Anywhere near Chicago Downtown.
What type of food are you interested in?
I would like to have Sushi. 
I have found several options in the downtown area.
I prefer one that is children friendly, has a an open deck, and in a quiet environment.
Ramen Wasabi would be a good choice for you.
I would like to book a table for Saturday the 7th of February at 8pm for five people preferable on the outside patio.
It appears that all the tables are booked for 8 o'clock.
What time is the next available table?
The next available table is at 9 o'clock.
Nine oclock seems too late. Can I get a different table that is open at 8 o'clock?
There is one available indoor booth for 8.30pm
That would be fine too. Go ahead and book the reservation.
I have made the reservation for you at 8.30 pm for booth number 14.
Thank you for the assistance.
You are welcome.