You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am planning to book a flight ticket to CLT from LGA, can you please help me out?

ASSISTANT: How may I help you? Sure, may I know your travel dates?

USER: Sure, my planned travelling dates are Sept 08 and Sept 10.

ASSISTANT: Is there any class preference?

USER: Yes, I prefer economy class.

ASSISTANT: May I know your connection limit?

USER: Yes, I am looking for a direct flight.

ASSISTANT: May I know your name?

USER: Sure, my name is Karen Davis.

ASSISTANT: Sorry, there are no flights found on your travel dates.

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

ASSISTANT: Thank you for reaching us.