You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I assist you?

USER: I need to book a flight ticket with in the price limit 500 for attending client meeting. Can you help me?

ASSISTANT: Sure, can I know your travelling dates?

USER: I will start on 07/21 and my return date will be on 07/23.

ASSISTANT: May I know your journey codes?

USER: My airport codes are PHX-DFW.

ASSISTANT: Do you need any connection?

USER: I need one connection.

ASSISTANT: Can you please provide your name?

USER: I am Cynthia Jones.

ASSISTANT: Thank you for the information, we found a direct flight.

USER: May I know the flight details?

ASSISTANT: The flight number is 1027 and Spirit as airline.

USER: You can proceed with the booking.

ASSISTANT: Can I proceed with the direct flight?

USER: No, I need one connection.

ASSISTANT: Sorry, there is no flight found matching with your connection.

USER: Thanks for your response.

ASSISTANT: Thank you.