You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Could you please book a ticket on the name of Larry Hill to Orlando, FL-MCO as I want to attend my friend's birthday party?

ASSISTANT: Sure, may I know your travel dates?

USER: I want to depart on 09/26 and return on 09/28.

ASSISTANT: May I know your origin airport code?

USER: My origin is Austin, TX-AUS.

ASSISTANT: There is a flight on your details with airline Frontier, flight number:1026. Shall I book this ticket?

USER: Please book my ticket with this flight.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you.