You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you please help me in booking the ticket from DFW to CLT? As I'm planning to visit Charlotte.

ASSISTANT: May I know your trip dates?

USER: Sure, my planned departure and return travel dates are 16th and 18th of February.

ASSISTANT: Do you prefer any connections?

USER: Yes, my maximum connection has to be 1.

ASSISTANT: May I know your requirement?

USER: No, I don't have.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: No flight found on your route.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you.