i want to try food in cambridge and need to get a train to stevenage that leaves after 14:45 .
user
hello , trains depart every 2 hour -s on the :21 s , what day are you hoping to travel ?
assistant
i want to leave on sunday from cambridge .
user
there are 5 such trains . do you have a preferred arrival time ?
assistant
i would like to arrive in time for lunch , preferably around 11:00