You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am heading from Austin to meet my friend at Washington. Can you help me book a flight ticket within the price of 5000?

ASSISTANT: Sure, may I know your travel dates?

USER: I intend to fly on 12/20 and return on 12/22.

ASSISTANT: Can you please share me your airport codes?

USER: I need to leave from AUS to reach DCA.

ASSISTANT: We found a flight on your details with airline JetBlue, flight number: 1029. Shall I book this ticket?

USER: You can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you so much.