You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I'm planning to visit Charlotte, can you please book the ticket from HOU to CLT?

ASSISTANT: Sure, please share your planned travel dates?

USER: Sure, I would like to depart from my source location on 19th Oct and I want to return back by 21st Oct.

ASSISTANT: Do you have any connection limit?

USER: Yes, I prefer single connected flight.

ASSISTANT: Any other preferences?

USER: No, I don't have any other specifications.

ASSISTANT: Can I have your name please?

USER: My name is Karen Harris.

ASSISTANT: Frontier airlines flight 1004 available with connection and fare is 100, shall I confirm this economy class flight?

USER: That's fine for me, you can proceed for booking the ticket.

ASSISTANT: Ok, your ticket has been processed.

USER: Thank you so much for your help, I really appreciate your service.

ASSISTANT: Thank you for opting us.