i need a train that will depart from stansted airport and should leave on monday
user
i can help you with that . can you confirm if your destination is cambridge and any time preference you have ?
assistant
yes , my destination is cambridge and i need to leave after 19:30 .
user
i show 4 possible options . is there a particular time you would like to arrive by ?
assistant
it does not matter . i just need tickets for 4 people .