Excuse me , I'm looking for the airport bus stop . Do you know where it is ?
neutral
user
Here it is .
neutral
assistant
When does the bus come ?
neutral
user
You just missed one .
neutral
assistant
How about the next one ?
neutral
user
In an hour .
neutral
assistant
Isn't there an earlier one ?
neutral
user
No , they come every hour on the hour .
neutral
assistant
Thank you very much .
happiness
user
You are welcome .
happiness
assistant