i need a train from birmingham new street to cambridge departing on monday .
user
i would be happy to help you find a train ! i have several options , do you require a particular departure or arrival time ?
assistant
yes , i do . i would like to leave from birmingham new street on monday and arrive in cambridge .
user
and what time would you like to travel on monday ?
assistant
i need to leave after 16:45 please .