You are a flight assistant. 
 USER: Hi, I am Ronald Lee.

ASSISTANT: Hello, how may I assist you?

USER: I have planned with my children round trip from New York, NY - LGA. Can you please help me with the price of 200?

ASSISTANT: Sure. When would you like to travel on?

USER:  I want to travel on 02/10, and need to catch return flight on 02/12.

ASSISTANT: May I know your destination?

USER: Sure, my destination code is New York, NY - JFK.

ASSISTANT: Do you have any specification?

USER: Yes, I need single connection of flight.

ASSISTANT: We found a flight on your details with airline UA, flight number: 1012. Shall I book this ticket?

USER: OK, please proceed to book.

ASSISTANT: Your ticket has been booked.

USER: Thank you for reserve the ticket.

ASSISTANT: Thank you.