You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be of your service?

USER: I am Margaret Martin, I need to reach Detroit, MI-DTW to attend world business conference. Can you help me to book a flight ticket?

ASSISTANT: Sure, do you have any price limit?

USER: I need the ticket with in the price limit 1000.

ASSISTANT: May I know your dates of journey?

USER: My journey dates would be on 09/23 to 09/25.

ASSISTANT: Please let me know your source airport code.

USER: I will start from Chicago, IL-ORD.

ASSISTANT: Thank you for providing your details. There is a flight found matching your request.

USER: May I know the flight details?

ASSISTANT: Delta airline with flight number 1001 and price of 100.

USER: Ok, you can proceed with this airline.

ASSISTANT: Your reservation has been confirmed.

USER: Thanks for your quick service.

ASSISTANT: Thank you for contacting us and have a great day.