You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I help you today?

USER: I want to attend a Seminar in Detroit. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, please share your planned travel dates?

USER: My travelling dates are Dec 25 and Dec 27.

ASSISTANT: Do you have any connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Can I have your name please?

USER: My name is John Green.

ASSISTANT: Please share your departure airport code?

USER: My origin airport code is HOU.

ASSISTANT: United airlines flight 1025 available with connection and fare is 100, shall I confirm this economy class flight?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been processed.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.