Domains: restaurant, taxi, hotel

user: I'm looking for a nice guesthouse to stay at during my trip to Cambridge. Anything with a 4 star rating will do.

assistant: The a and b guest house meets your needs. Would you like to book it?

user: Possibly, does this guesthouse hotel offer free parking and free wifi?

assistant: How about Allenbell? This meets all your criteria.

user: That could work. Where is Allenbell located?

assistant: The Allenbell is located in the East area. Would you like its address?

user: I am also looking for a cheap restaurant in the area that serves vegetarian food.

assistant: I'm not finding any cheap vegetarian restaurants. Is there something else you'd like to look for?

user: What price range do you have for vegetarian food in the centre area?

assistant: There are no results for a vegetarian restaurant in any price range in the centre area. Would you like to broaden your search to another area?

user: Are there any that serve spanish food instead? Preferably in the center area as well.

assistant: Yes. We have two restaurants that meet your criteria. Would you like me to book one for you?

user: I just need the address for one of the restaurants.

assistant: The address for La Tasca is 14 -16 Bridge Street.

user: Thank you. The last thing I think I need is a taxi. To pick me up at the restaurant by 10.00?

assistant: I'd be happy to help with your request, but first I will need to know what your destination is from the restaurant.

user: I need to return back to the hotel from the restaurant.

assistant: All right, I have booked you a taxi from the restaurant back to your lodgings. It will be a white volkswagen, and it will arrive to pick you up at 10:00. Is there anything else you need?

user: Yes I will also need the contact number for the taxi. Thanks

assistant: The contact number is 07800878036. Anything else I can do for you?

user: What is the car type that will be sent?

assistant: The car is a white volkswagen. May I help you with anything else?

user: No, that is all! Thank you very much!

assistant: You are welcome. Have a great day, goodbye.