You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself William Garcia.

ASSISTANT: OK. How can I help you?

USER: Book a ticket from AUS to EWR?

ASSISTANT: OK, could you help me with the travelling dates?

USER: My travelling dates are from 08/19 to 08/21.

ASSISTANT: OK, give me a moment. Can I know is there any price limit?

USER: The price limit should be 500 and with 1 connection.

ASSISTANT: OK. I had found a flight for you. Flight number is 1025 of southwest airlines. The price of ticket is 200, with a connection of 1.

USER: Please book the ticket.

ASSISTANT: OK. Thank you for reaching us.

USER: Thank you.