You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Could you please check the flight availability in normal cost airline?

ASSISTANT: Yes, can you share me your travelling dates?

USER: My travelling dates are Dec 27 and Dec 29.

ASSISTANT: Can you tell me your nearest airport codes?

USER: My source is CLT and destination is DTW.

ASSISTANT: Do you have any other specifications?

USER: Yes, I am looking for a flight with one connection.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested criteria.

USER: Not a problem, thank you.

ASSISTANT: Can I know your name for documentation?

USER: My name is Eric Nelson.

ASSISTANT: Thank you for reaching us.