You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to celebrate my birthday at New York with my family, please help me in booking a ticket from IAD to JFK.

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

USER: My planned travel dates are on Apr 3 and Apr 5.

ASSISTANT: Thank you, may I know any class preference is there on your journey?

USER: I prefer an economy class.

ASSISTANT: Ok, may I know your name for the documentation  purpose/.

USER: My name is James King.

ASSISTANT: Do you have any another preferences on this trip?

USER: I would like to return in the morning. I need a connecting flight.

ASSISTANT: United Airlines providing a flight with the price 100 with single connection and return time is 09.00AM. Can I proceed for the booking.

USER: Ok, please proceed for booking.

ASSISTANT: Your flight ticket reservation done with the flight number 1023.

USER: Thank you for your assistance.

ASSISTANT: Welcome, thank you for reaching us.