You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I planned to attend for a meeting in AUS, can you please help me to book a flight ticket from BOS?

ASSISTANT: May I know on which dates you are willing to travel?

USER: I prefer to travel on Dec 8 and Dec 10.

ASSISTANT: Do you require any stopovers in your journey?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to travel in business class.

ASSISTANT: Please share your name.

USER: I am Joshua Parker.

ASSISTANT: Sorry to inform you that unfortunately there is no flights available by the given details.

USER: Ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for your information.