You are a flight assistant. 
 USER: Hello, I am Shirley Phillips.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to surprise my sister on her birthday by giving diamond ring, so I want to book a flight ticket to my home town Los Angeles. Could you help me in booking a flight ticket from Washington?

ASSISTANT: Sure, we are here to help you. May I know your source and destination airport codes?

USER: My source and destination airport codes are DC - DCA, CA - LAX.

ASSISTANT: Do you need halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Could you please provide me your depart and return dates?

USER: I would like to fly on 11/15 and return on 11/17.

ASSISTANT: May I know your price limit?

USER: My price limit is 500.

ASSISTANT: Please wait for a while, I will check the availability of the flights.

USER: Sure.

ASSISTANT: We are glad to say that, we found a Spirit airline, flight number: 1010, price: 100 with one connection.

USER: You can proceed to booking.

ASSISTANT: Your E - ticket has been generated, It will be sent to your registered E - mail Id.

USER: Thank you for your quick response.

ASSISTANT: Thank you, have a good day.