You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, which service are you looking for today?

USER: I am Mark Jackson, I want to book a flight ticket to visit my friend marriage. Can you book a connecting flight for me?

ASSISTANT: Sure, we are here to help you in booking. Please provide me your journey dates.

USER: I will fly on 12/02 and return on 12/04.

ASSISTANT: Do you need any stopover in between your journey?

USER: I need a connecting flight.

ASSISTANT: What are your preferable airport codes?

USER: My source point is NC-CLT and destination is DC-IAD.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thank you for being on hold, Frontier airline from flight 1000 is available with a halt at a price 100.

USER: Please proceed with booking.

ASSISTANT: Reservation has been done on the name Mark Jackson.

USER: Thank you for helping me.

ASSISTANT: Thank you for making us to serve you.