i need a train on friday from the london liverpool street station .
user
there are 10 trains leaving that station on friday . what time would you like to travel ?
assistant
the train should leave after 17:15 and should go to cambridge .
user
there are 4 trains that leave after 17:15 . the tr9886 leaves at 17:39 from london liverpool street . would you like me to book you a seat ?
assistant
what is the arrival time ?
user
that train arrives at 19:07 .
assistant
okay i would like to book it . i am also looking for a restaurant on the cheap side in centre .
user
i found 15 restaurant -s , do you have a preference of food choice ?
assistant
i really do not it just needs to fit 8 people at 20:00 on friday .