You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Ashley Wilson, my plan to attend a film festival to San Francisco on 02/27. I will return on 02/29.

ASSISTANT: May I know your price limit?

USER: My price limit for ticket is 1000.

ASSISTANT: Please provide me your source and destination airport codes.

USER: I will fly from DCA to SFO. I need a flight with one connection.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting. I found a Spirit airline, flight number: 1015, price: 100 with one connection.

USER: It is good for me, proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you for helping me.

ASSISTANT: Thanks for choosing us.