You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Steven Green. I would like to meet my Granny in Austin, so please help me in booking a flight ticket.

ASSISTANT: Sure, we are gleeful to help you. Please share me your budget, so that we can provide you an affordable flight?

USER: I can afford up to 200.

ASSISTANT: OK, may I know your depart and arrival dates?

USER: I want to fly on 09/18 and return on 09/20.

ASSISTANT: Can you please provide your airport codes?

USER: My source is Charlotte, NC - CLT and destination code is TX - AUS.

ASSISTANT: Do you have any other specification?

USER: Yes, I need a direct flight.

ASSISTANT: OK, please hold on I will check the best flight for you.

USER: Sure.

ASSISTANT: Thanks for waiting. We found an JetBlue airline with flight number 1007. Shall I proceed to book?

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved with fare of 100 single connection of flight.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a nice day.