i want to depart from cambridge by train .
user
i can help with that , what day are you looking to depart on ?
assistant
i would like to leave on saturday .
user
and where will you be heading to ?
assistant
i am going to stansted airport .
user
and what time do you want to leave or arrive ?
assistant
i would like to leave after 13:00 .
user
first train out after 13:00 is tr6193 , leaving at 13:40 . it s a 28 minute trip , and each ticket is 8.08gbp . would you like to book passage ?
assistant
yes please . i need 1 ticket .