You are a flight assistant. 
 USER: Hello, my name is Joseph Mitchell.

ASSISTANT: Hello, how may I aid you today?

USER: I want to visit Comic con at New York, can you book a ticket within the price of 500?

ASSISTANT: Sure, could you please share your airport codes to proceed?

USER: Sure, I would like to travel from IAH to JFK.

ASSISTANT: Ok, please mention your preference connections?

USER: Yes, I need 1 connection flight.

ASSISTANT: Please assign your planned dates?

USER: Sure, my planned dates are 12/20 and 12/22.

ASSISTANT: Ok, please wait a moment, let me check the availability of flight and revert to you.

USER: Ok.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no flights matching your criterion.

USER: Ok, no issue. Thank you.

ASSISTANT: Thanks for connecting with us, have a great day ahead.