You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Carol Hill here. I want to attend a Seminar in Minneapolis. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, to book a ticket may I know your source and destination codes?

USER: My airport codes are from CLT to MSP.

ASSISTANT: Kindly mention your journey dates please?

USER: My travelling dates are from 01/19 to 01/21.

ASSISTANT: There is a flight available with an airline Frontier of flight 1023 and cost is 100. Can I proceed with the booking?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket has been booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.