Can you help me find a 4 star hotel to stay at?
Sure, do you prefer the west or the centre part of Cambridge?
I don't care about the area but I need it to be cheap with free wifi.
The cambridge belfry is available. Would you like me to book you a room?
Yes, please. I need four nights starting Sunday, for two people.
Done! Your reference number is CU4LPL6C. Do you need help with anything else?
I'm also looking for a place to eat in the city centre. maybe bistro food?
Sorry there are no restaurants in the centre of town serving bistro food.
Okay. What about one that serves seafood instead?
loch fyne is an expensive place that serves sea food. can we book?
Yes. Let's say 15:00 on the same day, with the same group of people.
Okay I have done that and their reference number is H2OPFSBQ.
Thanks, lastly, I need a taxi to take me to the restaurant from the hotel, I want to get there before the booked time.
Your taxi will be a red audi. Should you need to contact them, the number is 07971260313.
Thank you, have a nice day. 
You're welcome. And thank you, you, too!