You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I want to book a flight ticket to Austin with price under 500. Can you help me with it?

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

USER: Travelling dates are 11/21 and 11/23.

ASSISTANT: Ok, could you please share your journey codes?

USER: Journey codes are DEN-AUS.

ASSISTANT: Ok, we found a flight with number 1007 and airline Spirit at a price of 300 with 1 connection.

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, may I know your name please?

USER: My name is Michael Nelson.

ASSISTANT: Ok, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us, have a nice day.