You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please book a ticket from Oakland, CA-OAK to Austin, TX-AUS.

ASSISTANT: Ok, on which dates you are willing to travel?

USER: My travelling dates are from 04/14 to 04/16.

ASSISTANT: May I know your name for further use?

USER: Sure. I am Paul Green.

ASSISTANT: There is a direct flight-1015 with price 100, shall I proceed?

USER: Please do not book direct flight.

ASSISTANT: Would you like me to search a flight with single connection?

USER: Please search a flight with single connection.

ASSISTANT: Sorry, there is no flight with single connection. Thanks for reaching us, have a good day.

USER: Thank you.