You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am David Smith. Can you please help me in booking my flight ticket from HOU to DCA?

ASSISTANT: Yes, I will definitely try my best to help you in booking your flight ticket. Could you please provide your planned dates of journey?

USER: My travelling dates are Dec 01 and Dec 03.

ASSISTANT: Do you need a connection in between your journey?

USER: I need connecting flight.

ASSISTANT: OK, please wait a moment.

USER: Ok, sure.

ASSISTANT: Here, I found a flight with 1 connection as per your request and airfare is about 100. Shall I proceed in booking with this flight?

USER: Ok, please proceed.

ASSISTANT: In an economy class, your ticket has been confirmed for the flight 1021 in Delta airline.

USER: Thank you.

ASSISTANT: Thanks for choosing us.