You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Virginia Lee. I need to book a flight ticket from IAD to DCA, Can you please help me for booking?

ASSISTANT: Sure, please provide your dates of travel.

USER: I would like to travel on 02/20 to 02/22.

ASSISTANT: Ok, do you need any halt?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a flight in 1007 UA airline with a halt. Shall I proceed for booking with a fare of 200?

USER: Ok, proceed for booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.