Domains: taxi, attraction, hotel

user: I'm planning a trip to Cambridge and need a 4 star place with wifi to stay. It doesn't matter if its a hotel or guesthouse, just 4 star please.

assistant: There are 21 guesthouses offering free wifi. Do you have a price range?

user: It should be cheap and include free parking.

assistant: I have 8 results. What area would you like?

user: No particular area. What do you recommend?

assistant: I recommend finches bed and breakfast, that've got some good reviews.

user: Oh thats great. Please assist to book that for 5 nights starting from Saturday and if it fails then Tuesday. Please send me the reference number when you are done.

assistant: Booking was successful for Saturday. Reference number is : 5LQHD9SU . Can I help with anything else?

user: Yes, I'm looking for entertainment attractions located in the centre.

assistant: I'm sorry there are no matches.

user: Okay, perhaps you can find a college that I can visit.

assistant: There are five colleges available in the centre area. How about Downing College? The entrance fee is free.

user: Sounds great. What is the address?

assistant: it is on regent street

user: i also want a taxi to commute between the two places

assistant: Okay, do you need the taxi to go to the restaurant or the attraction?

user: I want to leave the attraction at 09:45 and head to the restaurant.

assistant: Sure, you will be expecting a black lexus , their contact number is 07988632177

user: Thank you so much.

assistant: you are welcome, enjoy yourself.