You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Richard Evans.

ASSISTANT: How may I assist you?

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

ASSISTANT: Yes, please can you share your travel dates?

USER: My travelling dates are 01/28 and 01/30.

ASSISTANT: Please wait for a moment. While I am checking for the flights available.

USER: Ok, take your own time.

ASSISTANT: Thanks for waiting. But presently we do have only zero connection flight.

USER: Sorry, I need connecting flight.

ASSISTANT: There is no connecting flight available with us.

USER: Ok, fine thank you for checking.

ASSISTANT: Thank you.