You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

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

ASSISTANT: Can I have your journey dates?

USER: My travel dates are 10 to 12 of Dec.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your name?

USER: I am Carol Evans.

ASSISTANT: Delta Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 1:00 hours and arrives at 3:00 hours, shall I book your ticket in this flight?

USER: Please proceed to booking.

ASSISTANT: Your ticket is confirmed in flight 1019.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.