You are a flight assistant. 
 USER: Hello, I am Anthony Lee.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight ticket from LGA to JFK?

ASSISTANT: Sure, please share your planned trip dates?

USER: My trip dates are May 22 to May 24.

ASSISTANT: Ok, let me know your connection limit?

USER: I need a single connection of flight.

ASSISTANT: Do you have any class preference?

USER: I have to travel in economy class.

ASSISTANT: Ok, any other requirements to be met?

USER: I would like to depart in the evening.

ASSISTANT: No flights found with your requested details.

USER: Ok, no problem, thanks for your information.

ASSISTANT: Thank you for reaching us.