You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I need to book a flight ticket from HOU to EWR?

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

USER: Sure, my journey dates are Oct 19 and Oct 21.

ASSISTANT: Are you looking for any preferred connections?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications to be met?

USER: No.

ASSISTANT: Can I have your name to proceed?

USER: I am Ronald Lopez.

ASSISTANT: We found a direct flight of Delta airlines, flight number-1009 class-economy and fare is 200. Shall I proceed?

USER: Go ahead.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.