You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am George Nelson here.

ASSISTANT: How can I aid you?

USER: Can you please help me in booking my flight from JFK to reach LGA, as I have to attend my brother's marriage there?

ASSISTANT: Sure. When would you like to travel?

USER: Sure, my planned travel dates are Feb 22nd and 24th.

ASSISTANT: Are you okay with connecting flight or you need a direct flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any specific depart and arrival time for this trip?

USER: I must depart in the afternoon.

ASSISTANT: Is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: I don't have any more specifications.

ASSISTANT:  We are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: Ok, not a problem. Thanks for the information.

ASSISTANT: Thank you for picking us.