You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Christopher Jackson, can you help me booking flight on 11/19?

ASSISTANT: Can I know your airport codes?

USER: My airport codes are AUS to BOS.

ASSISTANT: Are you want your return ticket?

USER: I would like to return on 11/21.

ASSISTANT: There is a flight for you with 1 connection. Shall I proceed?

USER: Ok, proceed to booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for booking.

ASSISTANT: Welcome.