You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Karen Hernandez, can you help me to book afternoon flight from ORD?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My travelling dates are 12/31 and 01/02.

ASSISTANT: Can you please share your destination airport code?

USER: My destination airport code is DFW.

ASSISTANT: May I know your connection limit?

USER: Please book a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for opting us.