You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Gregory Wright, can you help me to search a flight from DCA? Which is my current location. I am planning to meet my school friends at HOU, after a long time.

ASSISTANT: Sure, I will help for booking. Can you please provide me your travelling dates?

USER: My preferable dates will be on 12/27 and 12/29.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: We found a flight for you with 1 connection.

USER: I am fine with that flight. Please proceed.

ASSISTANT: Your ticket is confirmed with flight number 1024 and airline is UA.

USER: Thank you.

ASSISTANT: Welcome. Thank you for choosing us.

USER: I would like to appreciate your service.