You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a ticket from DCA to IAH. Could you book a ticket?

ASSISTANT: Sure, can you please mention with your dates of travel?

USER: Departure is Oct, 30 and return date is Nov, 1.

ASSISTANT: May I know your name please?

USER: My name is Jeffrey Perez.

ASSISTANT: Perez, there is a flight with the connecting flight of fare 200 with UA airline, are you ok with this booking?

USER: Please book a flight.

ASSISTANT: Ok, I have reserved your ticket with the flight number 1021.

USER: Thanks.

ASSISTANT: You are welcome, have a great day.