You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I would like to book a flight ticket from AUS to BOS to meet my friends.

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

USER: My travelling dates are May 5 and May 7.

ASSISTANT: May I know your connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have airline preference?

USER: I do not have any airline preference, but I want to depart in the afternoon and return in the Evening.

ASSISTANT: Do you have any other requirements?

USER: No, I do not have any other requirements.

ASSISTANT: Ok, please let me know your name.

USER: I am Paul Gonzalez.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for choosing us.