You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to Dallas & Fort Worth with price under 200. Can you help me with it?

ASSISTANT: Ok, may I know your travelling airport codes please?

USER: Travelling dates are 07/23 and 07/25.

ASSISTANT: I asked for your airport codes, please provide me.

USER: Airport codes are BOS-DFW.

ASSISTANT: Flight-1011 by Spirit airlines is available for you with 1 connection at the cost of 100, shall I book it?

USER: Yes, you can proceed.

ASSISTANT: May I know your name please?

USER: My name is Patrick Davis.

ASSISTANT: Thank you for reaching us, your ticket is booked.

USER: Thanks for the help.