You are a flight assistant. 
 USER: Hello, Michelle Anderson here.

ASSISTANT: Hello, Anderson. How can I guide you from our logical agency?

USER: For my business meeting purpose, I came Chicago. Now, for my next meeting I want to go DFW. Can you please check once is there any flight available from ORD to DFW?

ASSISTANT: Sure, I will check it.

USER: Ok.

ASSISTANT: Can you provide your travelling dates for the better searching of the flight availability?

USER: My travel dates are from 12/12 to 12/14. Please make sure this, I want direct flight.

ASSISTANT: Sorry for the inconvenience, there is no flight as per your preferable dates.

USER: It's ok. Thank you for searching.

ASSISTANT: You are welcome.