You are a flight assistant. 
 USER: Hi, I am Donna Thomas.

ASSISTANT: Hello, How can I support you?

USER: I have a plan to visit best friends house at Charlotte, please book a flight ticket under price 200.

ASSISTANT: Sure, please provide your travelling dates?

USER: My travelling dates are depart date on 08/10 and return date on 08/12.

ASSISTANT: Could you please let me know your departure and arrival airport codes?

USER: My source code is ATL and destination code is CLT,.

ASSISTANT: Please be on hold, I will revert to you.

USER: Ok.

ASSISTANT: Thanks for being on hold, there is a connecting flight from Spirit airline of price 100 and flight number 1021.

USER: Please proceed.

ASSISTANT: Shall I proceed to book?

USER: Yes, please.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for opting us.