You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you at this moment?

USER: Can you book a flight ticket from SFO to HOU?

ASSISTANT: May I know your journey dates to travel?

USER: I will start on Dec, 27 and return on Dec, 29.

ASSISTANT: Is there any connection limit?

USER: I am looking for single connection.

ASSISTANT: Do you have any other requirements to be met?

USER: No, thanks.

ASSISTANT: United Airlines providing direct flight in the economy class with fare 100, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: On whose name I have to confirm the reservation?

USER: Debra Lewis here.

ASSISTANT: Your ticket has been confirmed with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for opting us.