You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: My name is Joseph Nelson. I have a plan to visit some interesting places in Charlotte, can you please help me for booking?

ASSISTANT: Sure, please send your airport codes.

USER: My airport codes are PHL and CLT.

ASSISTANT: Kindly share the dates of your journey.

USER: My planning dates are 01/29 and 01/31.

ASSISTANT: There is flight available with Spirit airlines, shall I book it?

USER: I want a direct flight.

ASSISTANT: Sorry, this time there are direct flights available on this route.

USER: That's ok, no problem. I will go by road.

ASSISTANT: Ok, thank you for reaching us.

USER: Welcome.