Domains: restaurant, taxi, hotel

user: I'm looking for a 4 star hotel. Can't wait to check out Cambridge.

assistant: Yes I have both guesthouses and hotels that are 4 stars. Any preference on amenities or price?

user: I need it to have free parking too.

assistant: I can suggest allenbell.

user: is it expensive?

assistant: no quite cheap actually

user: Hmm, I don't usually like the cheaper places. How about anything that is moderately priced?

assistant: There is nothing that matches your criteria.

user: No problem. I would like a place to eat. Chinese food around the centre of town.

assistant: Okay I have many choices. Do you have a preference for price?

user: yes is should be expensive

assistant: I've heard great things about HK fusion.

user: Actually, I am looking for one that is in the same price range as the hotel for 3 people at 14:45 on Monday.

assistant: I have 3 options for moderately priced Chinese in the centre. I would suggest jinling noodle bar.

user: That will be nice. Can you book it for monday at 14:45 for 3 people?

assistant: Ok, your booking was successful. The table will be reserved for 15 minutes, the reference number is : SBDEVYH9 .

user: Thank you. Going back, I don't think we chose a hotel. I need a moderate price guesthouse with 4 stars. Remember?

assistant: We have 9 moderately priced guesthouses with parking, which side of town are you looking for?

user: I am looking for the centre area.

assistant: Based on the criteria, I cannot find a hotel. Would you like to try a different preference?

user: What about an expensive one?

assistant: The jinling noodle bar had already been booked for you, is that not ok?

user: No that is fine but I do need a taxi to arrive at the reastaurant by 14:45 and pick me up from the hotel.

assistant: I don't see where you have chosen a hotel. Perhaps we should look at that first?

user: Yes an expensive one would be great with a 4 star rating and free parking.

assistant: The university arms hotel sounds like exactly what you're looking for. Would you like me to book it for you?

user: No I just need their phone number and address.

assistant: They are on regent street and the phone number is 01223351241.