i am looking for a train going from cambridge to london liverpool street
user
i have many trains available between cambridge and liverpool street . what day are you looking to travel ?
assistant
i would like to travel on tuesday and i would like to arrive by 20:15 please .
user
i have train tr7299 that leaves at 5:59 and arrives at 7:27 . would you like to book that ?
assistant
do you have a train that arrives closer to 20:15 .