A:Hi!
B:Hi!
A:Could you please give us a hand?
B:Sure.
C:Oh,it's very kind of you.
D:Could you tell us where the post office is?
B:go along this road and turn left on the first turning,the second door on the left.
E:And if you are free,could you take us there?
B:Sorry,I am just a little busy now.
E:Oh,it's just a joke.So see you later!
A,C,D,E,F:See you!
B:see you!
