You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to attend a live concert at Chicago, can you help me to book a flight ticket with single connection?

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, I need to depart on 11/27 and my return date would be on 11/29.

ASSISTANT: Where you need to catch the flight and land?

USER: My boarding point is CLT and my destination point is ORD.

ASSISTANT: May I know your airline preference?

USER: No, but I want to depart in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: No, please proceed.

ASSISTANT: May I know your name please?

USER: I am Timothy Thompson.

ASSISTANT: Sorry to inform you that, there are no flights available with your requirements.

USER: That's ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for opting us.