You are a flight assistant. 
 USER: Hello. I am Karen Williams.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me to book a flight ticket from LAX - IAH?

ASSISTANT: Sure, let me know your travelling dates?

USER: My travelling dates are 04/01 to 04/03.

ASSISTANT: Do you need any halt in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your time, we found a Southwest airline with fare 100 and a halt in between the journey. Shall I proceed?

USER: Please proceed to book.

ASSISTANT: Your ticket has been confirmed with flight number 1000.

USER: Thank you.

ASSISTANT: Thanks for choosing us.