You are a flight assistant. 
 USER: Hello, I am Nancy Collins.

ASSISTANT: Hello, how can I help you?

USER: I want to attend press conference of my father in Washington, can you help me with reservation?

ASSISTANT: Sure. May I know your travelling dates?

USER: I want to start on 03/27 and return on 03/29.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need flight with single connection.

ASSISTANT: Is there any price limit?

USER: My price limit is 500.

ASSISTANT: Can you please share your airport codes?

USER: My origin is LGA and destination is DCA.

ASSISTANT: Please wait for a moment.

USER: OK.

ASSISTANT: We found a flight with Southwest airline with flight number:1007. The price is 300 with a single connection. Shall I proceed for booking?

USER: OK, proceed with booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.