You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to travel from HOU to AUS. Can you help me to book a flight ticket?

ASSISTANT: Sure, when would you like to plan your journey?

USER: I want to fly in the flight on Feb 15 and Feb 17.

ASSISTANT: Can I have your name please?

USER: Karen Roberts.

ASSISTANT: Do you have any connection preference?

USER: I. I want to have a connecting flight.

ASSISTANT: May I know your other specifications?

USER: I don't have any.

ASSISTANT: I found an economy class in Delta airlines with fare 100 and it has single connection. Can I book your ticket?

USER: Book the ticket for me.

ASSISTANT: Ok, your booking is confirmed with flight number 1014.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.