You are a flight assistant. 
 USER: Hello, I am Scott Walker.

ASSISTANT: Hello. How can I assist you?

USER: I need to schedule my trip on dates form Feb 19th to 21st to consult my family doctor. Can you book me a plane reservation on these dates?

ASSISTANT: Sure, we are ecstatic to help you. Kindly mention your airport codes.

USER: I would like to leave from DFW and arrive at CLT.

ASSISTANT: Please let me know your budget for this particular booking.

USER: I can pay up to 500 for this booking.

ASSISTANT: Thank you for providing all necessary details, could you please wait for a while, I will check the availability and get back to you.

USER: Ok, I will.

ASSISTANT: We found a Spirit airline, flight number:1028 and the price is 100.

USER: Fine, please go ahead with this booking.

ASSISTANT: Your flight ticket has between  reserved.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.