i need a train that leaves after 10:00 on wednesday .
user
i can assist you with that . can you tell me where you will be departing from ?
assistant
i would like to depart from cambridge , going to london kings cross .
user
how about tr9781 leaving cambridge to london kings cross on wednesday ? it leaves at 11:00 and gets in at 11:51 . it costs 23.60 . can i book this ?
assistant
no , i do not need a booking at the moment . what s the travel time ?