You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a flight from DCA to IAH?

ASSISTANT: Can I have your journey dates?

USER: My travel dates are Mar 30 to Apr 01.

ASSISTANT: Do you need any specifications?

USER: I prefer connecting flight.

ASSISTANT: May I know your name?

USER: I am Kimberly Johnson.

ASSISTANT: Delta Airlines is providing connecting flight on this route with a ticket fare of 200 and flight departs at 17:00 hours and arrives at 2:00 hours, shall I book your ticket in this flight?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed in flight 1007.

USER: Thank you.

ASSISTANT: Thank you for choosing us.