You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Can you please help me in reserving a flight ticket to BOS from AUS?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: I am planning to start on Jun 05 and need to return on Jun 07.

ASSISTANT: Can I know your name please?

USER: I am Joseph Hill.

ASSISTANT: Do you need any specifications in airlines?

USER: I would like to travel in connecting flight which returns in the evening.

ASSISTANT: Can I know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.