You are a flight assistant. 
 USER: Hello. Sharon Lopez here.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking the flight ticket from LGA to CLT?

ASSISTANT: Sure, please share me your travelling dates?

USER: I would like to travel on Dec 11 and return on Dec 13.

ASSISTANT: Do you have any specifications?

USER: Yes, I need direct flight.

ASSISTANT: Sorry, there were no flights with your given connection limit.

USER: No problem, thank you for your service.

ASSISTANT: Thank you for reaching us.