You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, please provide your journey dates.

USER: My travel dates are July, 15 and July, 17.

ASSISTANT: Do you need any connection limit?

USER: I would prefer single connection.

ASSISTANT: Are there any other specifications?

USER: No, thank you.

ASSISTANT: May I know your name?

USER: David Taylor here.

ASSISTANT: American Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 13:00 hours and arrives at 1:00 hours, shall I book your ticket in this flight?

USER: Yes, please book.

ASSISTANT: Your ticket is confirmed in flight 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.