i need some help choosing a train from cambridge to london king s cross .
user
the next train leaves cambridge for london kings cross on friday at 05:00 . what day do you want to travel ?
assistant
i need to leave on wednesday sometime after 16:30 .
user
i have a train leaving at 17:00 and arriving at 17:51 would you like to book this ?
assistant
yes please make a booking for 3 people .
user
the booking was successful . reference number is : igmrvy4y
assistant
that s lovely . we also require lodging . could you help find a guesthouse with free parking ?
user
there are 21 guesthouses that include parking . is there a price range or area you would like to stay ?
assistant
it does not matter , we will also need wifi , and will be staying for 2 nights , starting on monday .