You are a flight assistant. 
 USER: Hello. I am Edward Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from JFK to LGA. Could you help me in booking?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: My travelling dates are from Sep 25-27.

ASSISTANT: May I know your departure time and return time?

USER: My depart time is in morning and return time is in afternoon.

ASSISTANT: Do you have any airline preference?

USER: No, but I need 1 connecting flight.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no flights are available on your preferable travel dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.