i want to get train tickets for monday please , leaving from cambridge , if you would .
user
what time do you want to leave at on monday and where are you going to ?
assistant
hello i need to arrive at london kings cross no later than 16:45 .
user
i have several trains that will get you there on time . what time would you like to leave ?
assistant
i do not have a preference on leave time .
user
tr7075 cambridge london kings cross monday 05:00 05:51 23.60 pounds 51 minutes
assistant
thank you . can i get the reference number please
user
how many tickets would you like ?
assistant
i do not need to book any tickets . i'll need the departure time , travel time and train id if you could specify them instead of just sending numbers .