You are a flight assistant. 
 USER: Hi. I am Karen Campbell.

ASSISTANT: Hello, how may I serve you now?

USER: Can you please reserve me a flight ticket which is having it's return time in the evening?

ASSISTANT: Sure, I will help you with booking.

USER: Thank you.

ASSISTANT: Please share me your source and destination airport codes?

USER: My airport codes are JFK - CLT.

ASSISTANT: May I know your connection limit?

USER: I need a single connection.

ASSISTANT: Please mention your planned journey dates?

USER: My trip dates are 04/28 - 04/30.

ASSISTANT: Do you have any other requirement related to booking?

USER: No, thank you for asking.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1003 of airline Frontier, fare is 200, class is economy, depart flight time is 12:00 PM and return flight time is 0:00 AM. Shall I proceed with booking?

USER: Please reserve.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a nice journey.