You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to visit Washington, please help me in booking a ticket from LAX to IAD.

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

USER: My planned travel dates are on Nov 16 and Nov 18.

ASSISTANT: Ok, do you have any specifications?

USER: I prefer connecting flight for my trip.

ASSISTANT: I found a flight for you with Spirit Airlines and it costs you 100. Shall I proceed?

USER: Ok, please proceed for booking.

ASSISTANT: On whose name you would like to book this ticket?

USER: My name is Jerry Martin.

ASSISTANT: Your ticket has been booked with 1003 flight number.

USER: Thank you for your assistance.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.