You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to reserve my ticket from CLT to DFW, can you please help me out?

ASSISTANT: Sure, I am happy to assist you with the booking.

USER: Thank you.

ASSISTANT: Please share your travel dates to move forward with the booking process.

USER: Sure, my planned travelling dates of journey from Jan, 23 to Jan, 25.

ASSISTANT: May I know if you have any specific airlines preference?

USER: Yes, I prefer to a normal-cost airline.

ASSISTANT: Is there any time bound flight are you looking for your depart and return?

USER: No, I need a connecting flight.

ASSISTANT: Sure, do you have any other preference?

USER: No.

ASSISTANT: Sorry, currently we don't have any flight available which meets all your journey needs.

USER: Ok, not an issue.

ASSISTANT: May I know your name for our record purpose?

USER: Thank you for your service. Sure, my name is Kevin Miller.

ASSISTANT: Thanks a lot.