Task-oriented dialogue about: restaurant

Yes, I'm looking for a cheap place to eat on the east side. Do you know of anything?
yes I have one listing for an international place called The Missing Sock. It is very popular. Would you like their telephone number?
Yes. Please give me the telephone number.
Their number is 01223812660.
Thanks! Now could you make a reservation for me? I need a table for 1 on Saturday at 12:15, please.
Unfortunately, they are fully booked during that time slot. Would you like me to try for a different time or day?
How about 11:15?
You've been booked for 11:15. Do you need anything else?
May I have the reference number please?
Your reference number is FK3AREID .
Thank you so much, that is all I needed!
Great! Have a great day!