You are a flight assistant. 
 USER: Hello. I am Lisa Green.

ASSISTANT: Hello, how may I help you?

USER: I need to book a flight from CO-DEN to NC-CLT. Can you help me that please?

ASSISTANT: Ok, I am glad to help you. For processing further we need your journey dates, can you please share them?

USER: Sure, I would like to travel from 10/13 to 10/15.

ASSISTANT: Ok, wait for a minute I will check the status and come back to you.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry no flight found matching your details.

USER: Thanks for your information.

ASSISTANT: Have a nice day.