You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Karen Roberts. I want to book a flight ticket from CLT to ORD. Could you help me in booking?

ASSISTANT: Sure, can you share your journey dates?

USER: My travelling dates are from May 31 to June 02.

ASSISTANT: Do you have any specifications?

USER: I need a halt.

ASSISTANT: There is a connecting flight with number 1021 in airline Spirit, the fare is 100. Can I book it?

USER: Yes, please proceed.

ASSISTANT: Your ticket is reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.