You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I would like to meet my friends. Could you please help me with booking from IAD to IAH ?

ASSISTANT: Please provide your trip dates.

USER: My trip dates are Sep 13 and Sep 15.

ASSISTANT: Do you need any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No, I do not have any other specifications.

ASSISTANT: May I know your name?

USER: I am Joseph Turner.

ASSISTANT: Spirit Airlines is providing connecting flight on this route with a ticket fare of 100 and flight departs at 19:00 hours and arrives at 5:00 hours, shall I book your ticket in this flight?

USER: Proceed with booking.

ASSISTANT: Your ticket is reserved in flight 1000.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.