You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you today?

USER: Could you please help me in flight ticket booking process from HOU to AUS?

ASSISTANT: Sure, I am here to help you.

USER: Thank you for your response.

ASSISTANT: May I know your travel dates please?

USER: I want to departure on Mar 16 and book my return ticket also on Mar 18.

ASSISTANT: Ok, do you have any specifications?

USER: I want to travel in a direct flight.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Ok.

ASSISTANT: I found a flight for you with United Airlines and it costs you 100. Shall I proceed to reserve a seat in this direct flight?

USER: Please proceed.

ASSISTANT: On whose name you would like to book this ticket?

USER: Please confirm this flight ticket in my name Justin Walker.

ASSISTANT: Your ticket has been booked with 1019 flight number Justin Walker.

USER: Thank you for your service.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.