You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from BOS to CLT. Can you help me in that?

ASSISTANT: Sure, let me know your planned dates.

USER: My trip dates are July 05 to July 07.

ASSISTANT: Is there any connection limit?

USER: I need a direct flight.

ASSISTANT: Can I have your name please?

USER: Melissa Hill here.

ASSISTANT: Do you have any other concerns to meet?

USER: No.

ASSISTANT: Sorry to say that, no flights were found based on your given information.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.