i need to book a train for 8:45 to go to london kings crossing .
user
what day are you planning to travel ?
assistant
i would like to travel on friday .
user
i am sorry i dont have any trains for that day . would you like to leave at a different time ?
assistant
i will be leaving from cambridge on friday .
user
the earliest train i have is at 09:00 . is that ok ?
assistant
that s fine . can you give me the arrival time , travel time , and train id please ?