I'm looking for a train leaving after 15:30 from cambridge.
There are over 623 trains leaving then. Where will you be going to?
london liverpool street and should leave on monday
TR3602 departs at 15:59 Monday and arrives at London Liverpool street by 17:27. Does this suit your needs?
That sounds great.  Can you book that for 6 people for me?
Sure! I have 6 people booked for monday with reference number 3EBQSQSC and a total of 99.6 GBP. Can I help you with anything else?
I'm also looking for a recommendation on a hotel with free parking in the north.
Do you have a price range?
Yes, I'd like to keep it cheap, please. I do need free wifi, though.
I have listings for two,city centre north b and b and worth house.
Let's go with City Centre North B and B. I need to book for 6 people, 2 nights, and starting on Saturday, please. 
Yes. Your reservation was successful. The booking number is 4H91C8I3.
thank you that will be all
Have a great day!