You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to book a ticket from LAX to JFK. Can you please help me out to book a ticket for me?

ASSISTANT: I am happy to help you, may I know your travelling dates?

USER: I would like to travel on Apr 11 and return back on Apr 13.

ASSISTANT: May I know your connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Angela White.

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

USER: That's fine, thank you for your service.

ASSISTANT: Thanks for reaching us.