You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Kevin Williams.

ASSISTANT: How may I amend you today?

USER: I want to book a ticket from BOS to AUS to meet my friends, can you please help me that?

ASSISTANT: Sure. When did you plan the trip?

USER: I would like to leave between 03/09 and 03/11.

ASSISTANT: Ok. Do you require a connecting or direct flight?

USER: I need connecting flight.

ASSISTANT: Sorry to inform you that no connecting flights run on particular routes.

USER: Ok, no problem. Thank you so much.

ASSISTANT: Thanks for choosing us, Have a nice day.