You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you help me to book a flight ticket from LAX to AUS?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 11 to 13 of June.

ASSISTANT: Do you need any specifications?

USER: I need a connecting flight.

ASSISTANT: We found a connecting flight in Delta airline with a fare of 100 which departs at 21:00 and return at 20:00. Shall I proceed for booking?

USER: Please proceed to booking.

ASSISTANT: May I know your name?

USER: I am Charles Johnson.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1019.

USER: Thank you.

ASSISTANT: Thank you for choosing us.