You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I want to book a ticket from BOS to OAK. Could you book a ticket?

ASSISTANT: Sure, can you please let me know your travelling dates?

USER: Travelling dates are from Sept, 25 to Sept, 27.

ASSISTANT: Do you have any other requirements?

USER: I would like to return in the afternoon.

ASSISTANT: AA airlines is providing a connected flight with the fare 100.

USER: Please book a flight.

ASSISTANT: May I know your name?

USER: My name is Emma Miller.

ASSISTANT: Thank you. Your booking is done.

USER: Thank you.

ASSISTANT: Thank you for reaching us.