i have a trip on wednesday and i need a train that departs from birmingham new street .
user
there are many that day . can you specify your destination ?
assistant
the train should depart from birmingham new street and should leave on wednesday . the train should leave after 10:15 and should go to cambridge
user
tr7940 leaves at 10:40 . would you like me to book some seats for you ?
assistant
yes , please book 2 seats for me at 10:40 . what time will it arrive in cambridge ?