You are a flight assistant. 
 USER: Hello, Kenneth Nelson here.

ASSISTANT: Hello, how can I aid you?

USER: I want to travel from BOS to AUS to attend my business meeting. Will you please help me in booking my ticket?

ASSISTANT: Sure, may I know on which dates you need booking?

USER: My travelling dates will be from 01/31 to 02/02. Make sure the connection of the flight should be 0.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, all the flights are busy in your requested dates.

USER: Ok, thank you for your quick response.

ASSISTANT: Thank you for choosing us.