i want to leave on staurday to go to kings lynn
user
what time did you want to travel ?
assistant
i would like to leave cambridge to arrive in kings lynn by 18:15 .
user
okay , the tr2840 leaves at 17:11 and arrives by 17:58 . would you like me to book this for you ?
assistant
yes that sounds great . i need to book 1 for 4 people .