You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I want to conduct a conference with my clients at Charlotte. Can you aid me in booking a flight ticket from DFW to CLT?

ASSISTANT: Sure, help me with the trip dates?

USER: I am planning to start on Aug 20th and return back on Aug 22nd.

ASSISTANT: Do you have any preferences?

USER: I prefer to start in morning time in normal cost airline.

ASSISTANT: We do not found any flights running in your desired routes.

USER: No issues. Thank you for checking.

ASSISTANT: May I know your name please?

USER: My name is Anna Robinson.

ASSISTANT: Thank you for reaching us.

USER: Welcome.