i need a train from cambridge to stevenage please .
user
i have 4 trains for those location -s . what day and time were you looking for ?
assistant
i would like to leave on tuesday after 21:30 , please .
user
there is only 1 train traveling from cambridge to stevenage on thursday close to 23:30 . it is the tr8239 , would you like for me to book you a ticket ?
assistant
yes , please . i'll actually need 7 tickets .