You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: Stephanie Carter here, I would like to attend a seminar on social issues in pioneer plaza at Dallas & Fort Worth, DFW. Can you help me in booking a flight ticket from LAS?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: On which dates would you like me to book a flight ticket for you?

USER: I will prefer to go on 09/09 and return back on 09/11.

ASSISTANT: Do you have any other restrictions to be met?

USER: I will prefer a flight with a halt. I can pay up to 500.

ASSISTANT: Give me few seconds to check the best flight services for you.

USER: Ok, I will be waiting for your response.

ASSISTANT: Thank you for waiting. We found a flight in Southwest airline matches given criteria, shall I proceed?

USER: Yes, please.

ASSISTANT: Your booking has been done with flight 1009.

USER: Thank you.

ASSISTANT: Thank you for approaching us.