Task-oriented dialogue about: hotel

Can you help me find a moderately priced guesthouse?
We have 15 guesthouses in that price range, any other preferences?
I'd like free wifi included please.
The Acorn guesthouse is in the moderate price range and has wifi. Would you like to book a room?
Yes. Please book for 8 people for 4 nights starting Thursday.
I will book it for you,is there anything else I can do for you ?
Yes, I need the reference number.
You have reservation at acorn guest house for 8 people 4 nights starting Thursday.I will give you the reference number.
OK ... can I have that reference number, please?
Your reference number is PJDTNB2Z .