You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How may I help you out?

USER: I am Helen Jones. I need your assistance in booking of a flight, can you please check out there is any flights between Dallas, DFW and Charlotte, CLT?

ASSISTANT: Sure. May I have your travelling dates?

USER: My trip dates are 05/10 to 05/12.

ASSISTANT: Do you have any specifications?

USER: Price limit is 500.

ASSISTANT: Ok. You can go with Spirit airline with flight 1005 matches your request.

USER: You can proceed.

ASSISTANT: Your reservation is done.

USER: Thank you.

ASSISTANT: Thank you.