You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Jason Nelson.

ASSISTANT: How can I assist you?

USER: I have a meeting with President to attend at Washington. Can you help me in booking a ticket from ORD to IAD?

ASSISTANT: Sure, I'll definitely help you in that. May I know your travel dates please?

USER: I prefer to travel on 03/08 and would like to return on 03/10.

ASSISTANT: Spirit airlines is having a flight on that route with travel charge of 200, shall I proceed for booking?

USER: Please proceed for booking the ticket.

ASSISTANT: Your ticket has been booked with flight-1011, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.