You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Steven Moore. I have planned to participate in science fest at Austin. Can you please book a ticket in a direct flight?

ASSISTANT: Sure, may I know the dates of journey?

USER: I would like to depart on 09/21 and return on 09/23.

ASSISTANT: Do you have any specifications?

USER: Price should be under 500. My origin is PA - PHL and landing point is TX - AUS.

ASSISTANT: Give me a minute.

USER: Ok.

ASSISTANT: There a connecting flight on your route.

USER: Don't proceed with booking.

ASSISTANT: Ok, thank you for availing us.

USER: Thanks for your support.