You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to San Francisco, CA - SFO as I have a joining order in an organisation. Can you help me in booking a ticket?

ASSISTANT: Sure, I will help you to book a flight. Please share me your boarding point?

USER: Ok, my origin airport is Chicago, IL - ORD.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I need a lay by.

ASSISTANT: May I know on what dates would you like to travel?

USER: My planned trip dates are 08/02 and 08/04.

ASSISTANT: Please mention your price limit?

USER: Ok, I can afford up to 200.

ASSISTANT: Thanks for the details, I found a flight of Frontier airline, flight number is 1012 and fare is 100. Shall I proceed with booking?

USER: Ok, proceed with booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your kind service.

ASSISTANT: May I know your name?

USER: Myself Robert Evans.

ASSISTANT: Thank you, have a nice day.