Yes I would like to find Spanish food in the center of town.
you're in luck I have two options for you. One is in the cheaper price range, the other is listed as moderately priced. Do you have a preference?
Let's go with the cheap one. I'll need a table for 7 on Sunday at 12:15 please.
Unfortunately the booking was not successful. 
Can you try on saturday, 7 people, at 12:15
Yes, you're booked for Saturday with reference number V54FG5X2. The table will be reserved for 15 minutes. May I help with anything else?
No, that's all I need. Thanks for your help!
Thank you, goodbye!