You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I best assist you now?

USER: I am Joseph Carter want to attend my cousin's wedding at Philadelphia on 12/11 and return on 12/13, can you help me with booking please?

ASSISTANT: Sure, I am glad to help you. Can you please let me know your airport codes?

USER: Yes, my airport codes are NC-CLT and PA-PHL.

ASSISTANT: Do you need any other requirements?

USER: Yes, I need a connection in between the journey.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there is no flight found on your journey dates.

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

ASSISTANT: Thanks for choosing us. Have a great day.