You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Please help me to book a flight ticket from OAK to DFW.

ASSISTANT: May I know your travel dates?

USER: My trip dates are May, 24 and May, 26.

ASSISTANT: Are you looking for any lay by in between your journey?

USER: I would prefer single connection.

ASSISTANT: Is there any other concern?

USER: No.

ASSISTANT: May I know your name please?

USER: Mary Garcia here.

ASSISTANT: United Airlines is providing the connecting flight and the fare of 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your reservation is confirmed for the flight 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.