You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, may I know your good name please?

USER: I am Patricia Carter.

ASSISTANT: Thank you, may I know how best I can help you today?

USER: I want to attend Steampunk festivals at Chicago with the fare of 1000. Can you please help me in booking a flight ticket?

ASSISTANT: Sure, I can help you as per your request.

USER: Thank you.

ASSISTANT: May I know In which airport do you want to takeoff? Along with that please share your landing airport code?

USER: I want to takeoff from Dallas & Fort Worth, TX - DFW. Landing airport code is IL - ORD.

ASSISTANT: On which dates you wish to travel?

USER: I wish to travel on 06/07. And need to catch return flight on 06/09.

ASSISTANT: At what price do I need to book a flight for you?

USER: Make sure to check a flight with in a price limit of 1000.

ASSISTANT: Ok, please wait a while. I will check available flights and update you.

USER: Sure, take your time.

ASSISTANT: Business class tickets are available in Spirit airline plane on your specified dates. Airfare is 400. Would you like me to proceed for booking?

USER: I am very comfortable to travel with airline Spirit. Reserve my seat.

ASSISTANT: Ok, your booking has been successful with flight 1027.

USER: Thank you for your support and service.

ASSISTANT: It's our pleasure to support you. Thanks for choosing Spirit airlines, have a nice journey.