You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Michael Roberts.

ASSISTANT: How can I assist you today?

USER: Can you book a flight ticket from IAD to AUS?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: I am planning to move on 06/16 and back on 06/18.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is a flight with price 200 and the connections 1 is available.

USER: Yes, book the ticket.

ASSISTANT: Your ticket is booked. The flight number is 1025.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.