You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Help me in booking a flight from LAX to HOU?

ASSISTANT: May I know your trip dates?

USER: I like to travel on Sept 19 to 21.

ASSISTANT: May I know your name?

USER: I am Brian Brown .

ASSISTANT: Do you prefer any connections?

USER: No.

ASSISTANT: Can you prefer any specifications?

USER: I prefer travelling in connection flight, I don't have any specifications more then that.

ASSISTANT: AA airlines providing a connecting flight in economy class.

USER: Proceed for booking.

ASSISTANT: Your booking is done.

USER: That's ok, thank you.

ASSISTANT: Thank you.