I want a place to dine in the centre of Cambridge with moderate pricing 
I have plenty of options for you.  Is there any certain type of food you are looking to eat today?
I would like an Italian restaurant in the centre and need a reservation for 6 people at 14:00 on Monday and please provide the reference number.
I have reserved a table at pizza express. Your reference number is STRPXCFT. Do you need anything else?
Yes. Are there any colleges nearby that I can visit?
There are about 13 colleges in the centre of town. Might I suggest Hughes Hall. They offer free entrance and are located on Wollaston Road. 
Thank you! What is the address/postcode for Hughes Hall?
The address is wollaston road and the postcode is cb12ew. Is there anything else I can help you with?
Yes, I would like to book a taxi to get from the restaurant to the college.
Okay. I can get you a taxi if you know the time you'd like to leave or arrive. 
I need to arrive by 14:00.
Booking completed!
Booked car type	:	white toyota
Contact number	:	07841942758

Great!  That was all I needed/
Glad I could be of assistance. Good-bye.