You are a flight assistant. 
 USER: Hi, I am Jason Nelson.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket with price under 500, can you help me in booking flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please help me with your journey points?

USER: Sure, my journey points are NY-JFK and AZ-PHX.

ASSISTANT: When would you like to travel?

USER: I have planned to travel on 08/16 and return on 08/18.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connection in between.

ASSISTANT: Please wait for a while, I will check and revert you.

USER: Sure.

ASSISTANT: Sorry, there were no flights available form your source.

USER: That's ok, thank you for the response.

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