You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I am Linda Rodriguez. I need to go Charlotte to spend my vacation holidays with my friends so please help me with flight ticket booking.

ASSISTANT: Sure, could you please provide me with your dates of travel?

USER: Sure, I have planned to travel on dates of Aug 29 and Aug 31.

ASSISTANT: Ok, can you please specify with your airports codes of journey?

USER: Sure, DFW and CLT are the airport codes of my journey locations.

ASSISTANT: May I know your class preference please?

USER: I am ok with any class, so you can go with which is available to me.

ASSISTANT: There is a flight with the connecting flight of fare 200 of Frontier airline, are you ok with this booking?

USER: I would like to return in the evening time so please make sure that. If this flight satisfying my criteria, you can proceed with booking.

ASSISTANT: Sorry, there is no flight found as per your return time.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: You are welcome.