You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Joseph Turner. I want to book a flight ticket to attend a seminar in Washington.

ASSISTANT: Ok, may I know your planned journey dates?

USER: My departure is 09/13 and return date on 09/15.

ASSISTANT: Let me know your price limit.

USER: My price limit is 5000.

ASSISTANT: Can you please provide me your airport codes?

USER: My source from TX - HOU and destination to DC - DCA.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, I found a Hawaiian airline, flight number: 1006. Price is 300 with one connection.

USER: You can proceed to booking.

ASSISTANT: Ok, your flight ticket has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thanks for choosing us.