You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Lopez.

ASSISTANT: How can I assist you today?

USER: I am looking for a flight from Washington, can you help me out?

ASSISTANT: Sure, I can help you with that. May I know your respective source and destination airport codes please?

USER: My origin airport code is DCA and destination airport is IAH.

ASSISTANT: Can you please provide your planned travel dates?

USER: I will start my journey on Dec 16th and recur will be on Dec 18th.

ASSISTANT: Ok, do you have any other specifications?

USER: I need a connecting flight for my journey.

ASSISTANT: Spirit airlines is providing a flight on that route with ticket fare of 300, shall I proceed for booking?

USER: Please proceed with it.

ASSISTANT: I have successfully booked your ticket with flight-1012, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.