You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Mark Jones here, I want to travel from EWR to AUS, can you please help me to book a ticket?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: Sure, my dates of journey is from 09/15 to 09/17.

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

USER: I want a flight which is direct for me.

ASSISTANT: I found a flight for you with Delta airline and it costs you 200. Shall I proceed?

USER: Ok, please proceed with this booking.

ASSISTANT: Your ticket has been booked with 1011 flight number.

USER: Thank you for your service in reserving my ticket.

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