You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: I need to book a flight ticket from IAD to LGA, can you help me in booking a flight ticket?

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

USER: Sure, my journey dates are Jul 21 and Jul 23.

ASSISTANT: May I know your connection limit?

USER: I prefer maximum one connection.

ASSISTANT: May I know your departure and arrival time?

USER: I am comfortable with any time.

ASSISTANT: Do you have any other requirements?

USER: I want to fly in a standard airlines.

ASSISTANT: Ok, please share your name to proceed further.

USER: Sure, Robert Gonzalez here. Please make sure I would prefer economy class.

ASSISTANT: There is a flight from American Airlines with a ticket fare 300, shall I proceed with booking?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed with the flight-1000 in economy class.

USER: Thank you for your assistance.

ASSISTANT: Welcome, have a safe trip.