What can I do for you , sir ?
neutral
user
I am Tim Green in Room 1021 and I want a wake-up call at five thirty AM tomorrow .
neutral
assistant
Yes , I see . five thirty AM Mr . Green , Room 1021 .
neutral
user
I want to change my wake-up time .
neutral
assistant
Ok , could you tell me your room number and your name ?
neutral
user
Tim , in Room 1021 .
neutral
assistant
And when would you want us call you this time ?
neutral
user
At six thirty AM tomorrow .
neutral
assistant