You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please help me to book a flight ticket from OAK to BOS?

ASSISTANT: May I know your travel dates?

USER: My travelling dates are June 23 to June 25.

ASSISTANT: Do you have any connecting limit preferences?

USER: I need a single connection of flight.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: I am William Thompson.

ASSISTANT: Spirit Airlines is providing the connecting flight on this route and the fare of 200.

USER: Ok, please proceed.

ASSISTANT: Your reservation is confirmed for the flight 1007.

USER: Thank you.

ASSISTANT: Thank you.