You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Stephen Turner here. Do you have any flight from DFW to attend a business meeting in CLT?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My planned travel dates are 01/22 and 01/24.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, there is no flights found under your preferable details.

USER: Ok, that's fine. I can prefer another source to reach my location. Thank you for your help.

ASSISTANT: Welcome, have a great day.