You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Ronald Williams and I would like to book a flight ticket.

ASSISTANT: Sure. May I know your flight details?

USER: I need to travel from TX-DFW to WA-SEA.

ASSISTANT: On which date do you need to travel?

USER: My journey dates are 09/09 and 09/11 and the price limit should be 1000.

ASSISTANT: OK. Please, wait for sometimes and I will get back to you.

USER: OK.

ASSISTANT: Thanks for waiting. A flight of Spirit airline matches your criteria. Price of the flight is 100. Shall I proceed?

USER: OK, You can proceed.

ASSISTANT: OK. Your ticket has been confirmed. Have a safe journey.

USER: Thank you.