You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Samuel Mitchell. I am planning to meet my childhood friend in Austin, so please help me in booking a flight ticket.

ASSISTANT: Sure, please share me your travel dates?

USER: I want to fly on 09/16 and return on 09/18.

ASSISTANT: May I know your airport codes?

USER: My source is Chicago, IL - ORD and destination code is TX - AUS.

ASSISTANT: We found a flight on your details with airline Frontier, flight number: 1016. Shall I book this ticket?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you.