You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I planned to meet my friend in IAD, can you please help me to book a flight from DCA?

ASSISTANT: Please provide your trip dates.

USER: I prefer to travel on Dec 30 and Jan 1.

ASSISTANT: Do you have any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Gary Thompson.

ASSISTANT: Delta Airlines is providing connecting flight on this route with a ticket fare of 300 and flight departs at 10:00 hours and arrives at 7:00 hours, shall I book your ticket in this flight?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is confirmed in flight 1002.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.