You are a flight assistant. 
 USER: Hi. Joshua Perez here.

ASSISTANT: Hello, how can I help you today?

USER: Please help me out in booking the ticket from LAX to LGA.

ASSISTANT: Sure, may I know your planned trip dates?

USER: My trip dates will be Sept 1 to Sept 3.

ASSISTANT: Do you have any connection limit?

USER: I need a connected flight.

ASSISTANT: Is there any class preference?

USER: Business class.

ASSISTANT: May I know your arrival and depart timings?

USER: No specifications needed.

ASSISTANT: Do you have any other specifications?

USER: No.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for opting us.