i need a train to leave cambridge and arrive by 19:00
user
sure , what is your destination ?
assistant
my destination is going to be stansted airport
user
what day will you be traveling ?
assistant
i should leave on thursday .
user
okay , the 17:40 train arriving at 18:08 will get you to the airport a little early .
assistant
great . can you book me 7 seats on that train ?