You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please reserve me a flight ticket from CLT to DCA?

ASSISTANT: Sure, can you provide your trip dates?

USER: Thank you. My trip dates are May 18 and May 20.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: May I know your name?

USER: I am Brian Wilson.

ASSISTANT: There is a connecting flight with number 1024 in airline Frontier, the fare is 200 in economy class. Can I book it?

USER: Please proceed.

ASSISTANT: Your ticket is reserved, the depart time is 18:00 hours and return time is 12:00 hours.

USER: Thank you.

ASSISTANT: Thank you for reaching us.