You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, do you need any help from us?

USER: Can you please help me in booking my flight ticket from AUS to BOS?

ASSISTANT: Sure, could you please share your departure and arrival day?

USER: My travelling dates are Apr 13 and Apr 15.

ASSISTANT: Ok, could I have your name please?

USER: Myself Jason Parker.

ASSISTANT: Ok, do you need direct or connecting flight?

USER: I need connecting flight.

ASSISTANT: Ok, do you have any other specifications?

USER: I need my return ticket at morning time.

ASSISTANT: Sorry, there is no flight on your requested travelling dates.

USER: Thanks for your information.

ASSISTANT: You are welcome, have a great day.