You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Please book a ticket from LGA to JFK to attend Innovation festival to share my ideas.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My journey dates are July 2 and July 4.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I want single connected flight.

ASSISTANT: Do you have any class preference?

USER: No.

ASSISTANT: May I know your good name please?

USER: Sure, I am Brandon Smith.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, no worries. Thank you.

ASSISTANT: Thank you for reaching us.