You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you help me to book a flight ticket from CLT to DFW?

ASSISTANT: Sure, can you please let me know your dates of journey?

USER: My travelling dates are 19 and 21 of June.

ASSISTANT: May I know your name please?

USER: I am Rachel Lee.

ASSISTANT: Do you have any other specifications please?

USER: I prefer to travel in economy class with a connecting flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I found a flight with the connecting flight of fare 100 with the Spirit airline, are you ok with this booking?

USER: Please proceed with the booking.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1009, your depart time is at 9:00AM and return will be at 11:00AM.

USER: Thanks for helping me.

ASSISTANT: You are welcome, have a safe journey.