You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please help me to book a flight ticket from DCA to HOU.

ASSISTANT: Sure, can you please provide me with your dates of journey?

USER: My journey dates are from June, 20 to June, 22.

ASSISTANT: May I know your good name please?

USER: Thomas Lopez.

ASSISTANT: Do you have any other requirements please?

USER: I need a single connecting flight.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: I found a connecting flight of fare 100 with the AA airline, are you ok with this ticket booking?

USER: Please proceed.

ASSISTANT: Ok, I have confirmed your ticket with the flight number 1012.

USER: Thank you.

ASSISTANT: You are welcome, have a safe flight.