i need to find a train leaving on friday from london liverpool street and arriving in cambridge .
user
i have 10 trains as options . do you have a time you want to leave or arrive by ?
assistant
yes i would like to arrive in cambridge by 15:15 .
user
the tr5015 will get you there by 15:07 . would you like me to book you some seats ?
assistant
no thank you , may i please get the travel time of tr5015 ?
user
the travel time is 88 minutes . can i help you with anything else ?
assistant
yes , what time does that train leave ?
user
it would depart at 13:39 and arrive in cambridge at 15:07 .
assistant
please book it for me . i also need a place to stay , a guesthouse with free parking ?
user
i have booked the train for you . the reference number is jn7fftty .
assistant
thank you , i am also looking for a place to stay . can you help me find someplace ?
user
sure . what area would you like to stay in ?
assistant
i do not need any specific area , just need a guesthouse that is cheap and include -s free parking .
user
i have 33 entries that match your request . do you have a star rating preference ?
assistant
no i do not . pick any of the 33 and give me the address and area , please .