i need a train that departs from cambridge and arrives at london liverpool street . can you help me ?
user
i would be happy to . do you have a specific date and time for your departure ?
assistant
i want to leave on saturday and should arrive by 18:00 , i have a doctors appointment to see to .
user
the tr4466 arrives in london liverpool street at 15:27 , would that be acceptable ?
assistant
yes what is the price , departure time , and travel time ?
user
it is 13.28 pounds , will arrive 15:27 , and the travel time will be 88 minutes . can i help you with anything else ?
assistant
yes , i'll also need a place to stay in the south and would prefer a guesthouse .