You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Karen Hill. I am planning to visit a Discovery place at Charlotte. Can you please book a flight ticket for me?

ASSISTANT: Yes, I can help you with that.

USER: Thank you.

ASSISTANT: Can you tell me your nearest source airport code?

USER: My nearest source airport code is TX-DFW.

ASSISTANT: Ok, could you share me your dates of travelling?

USER: I would like to take off flight on 03/14 and return back on 03/16.

ASSISTANT: Can I know your nearest destination airport code?

USER: My destination code is CLT.

ASSISTANT: Give me a moment, I will get back to you.

USER: Sure, I will wait.

ASSISTANT: I have found a flight ticket for you with a price of 100 and 1 connection. Can I proceed to booking?

USER: That's great, you can proceed the booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for consulting our agency. Have a safe flight.

USER: You are welcome.