i need a taxi today arriving at 21:00 .
user
i need a little more information . where are you leaving from ?
assistant
oh i am sorry i need to be picked up at the whipple museum of the history of science .
user
what is your destination ?
assistant
i want to go to restaurant 2 two .
user
and do you want to be picked up from whipple museum at 2100 or get to restaurant 2 two at 2100 ?
assistant
i would like to arrive at restaurant 2 two by 21:00 please .