You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Is there any availability of flights from DTW to LAX to attend for a conference?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are on Dec 19 and return on 21 Dec.

ASSISTANT: May I know your connection limit?

USER: I need a connected flight.

ASSISTANT: Do you have any other preference?

USER: No.

ASSISTANT: Can I know your name?

USER: Sarah Harris is my name.

ASSISTANT: Here is a connecting flight with fare 100 and 1029 as flight number in United Airline. Shall I proceed with booking?

USER: Ok, please proceed for booking.

ASSISTANT: Your ticket has been confirmed in an economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.