Task-oriented dialogue about: train
hotel

I need a place to stay, and I need it to provide free parking.
There are lots of places to choose from. Are you looking for something in a specific area of town?
No, but I'd like something with 4-star quality.
That narrows it down to 19 places to stay. I'll need to know what part of town you want to stay in or your pricerange to better help you.
Any that have free wifi will be fine. I'll need to know the hotel type and postcode.
Ok, if you are happy with a guesthouse, there's alexander bed and breakfast, which is a cheap four star place in the city centre. Does that sound good?
Can you give me their post code?
The postcode is cb12de, can I assist with anything else?
I also need a train leaving at 19:00 from Cambridge on Tuesday. It should be arriving to London Kings Cross.
The TR4125 meets your criteria. Would you like to book tickets?
yes, two tickets please
Okay I have booked those for you and your reference number is FG8Y4ARW .
That will be all. Thank you for your help.
You are very welcome! I hope you have a great trip! Enjoy!
Thank you very much!
You are quite welcome, we are happy to help. Have a great day!